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Chinese Journal of Quantum Electronics
Contents
2018
Volume: 35 Issue 5
20 Article(s)
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Chinese Journal of Quantum Electronics
Publication Date: Jan. 01, 1900
Vol. 35, Issue 5, 1 (2018)
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Vacuum ultraviolet ionization and dissociation of hydroxyacetone
Weifei FEI, Ming WANG, Jun CHEN, Zhaohui LI, Yepeng YU, Xuan LIN, Fuyi LIU, Xiaobin SHAN, and Liusi SHENG
The photoionization and dissociative channels of gas-phase hydroxyacetone(HA) are investigated by using vacuum ultraviolet synchrotron radiation, photoionization reflectron time-of-flight mass spectrometer(PI-TOF-MS) and quantum chemistry calculation methods. The ionization energy(IE) of HA,(9.78 ± 0.06) eV, and t
The photoionization and dissociative channels of gas-phase hydroxyacetone(HA) are investigated by using vacuum ultraviolet synchrotron radiation, photoionization reflectron time-of-flight mass spectrometer(PI-TOF-MS) and quantum chemistry calculation methods. The ionization energy(IE) of HA,(9.78 ± 0.06) eV, and the appearance energies(AEs) of the major fragment ions C3H5O2+, C3H5O+, C2H5O+, C2H4O+, CH3CO+, CH2OH+, COH+, C2H3+ and CH+3 are obtained by measuring photoionization efficiency(PIE) curves in the photon energy region of 9.5~15.5 eV. Quantitative calculation is carried out by G3B3//B3LYP/6-311++G(d,p) combination method. The reactants, transition states and intermediates related with the molecular dissociation process and the optimal product structure and single point energy are obtained. According to the measured ions appearance potential, the photoionization dissociation channel and mechanism of HA are analyzed combining with quantitative calculation. Results show that the structure rearrangement and molecular ion internal hydrogen atom transfer play an important role in the process of photoionization dissociation of HA..
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Chinese Journal of Quantum Electronics
Publication Date: Jan. 01, 1900
Vol. 35, Issue 5, 513 (2018)
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Quantitative analysis of aerosol inorganic ion based on nonlinear least squares algorithm
Xiuli WEI, Lu ZHANG, and Minguang GAO
In order to adapt to the rapid development of online automatic monitoring technology, nonlinear least squares algorithm is applied to quantitative analysis of multi-component infrared spectral signals. The quantitative information of measured spectrum is obtained by fitting the standard spectrum and measured spectrum o
In order to adapt to the rapid development of online automatic monitoring technology, nonlinear least squares algorithm is applied to quantitative analysis of multi-component infrared spectral signals. The quantitative information of measured spectrum is obtained by fitting the standard spectrum and measured spectrum of aerosol inorganic ion composition. Results show that the nonlinear least squares algorithm has some advantages in quantitative analysis of multi-component infrared spectral signals, and the root mean square(RMS) of nitrate is 0.340%. The trend of aerosol inorganic ion concentration in Dongpu Island of Hefei, China is analyzed using the calculation results, and the temporal trends of sulfate and nitrate are obtained. It’s indicated that the nonlinear least squares method can be used for infrared spectroscopy quantitative analysis of the aerosol ion chemical composition concentration without real-time calibration..
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Chinese Journal of Quantum Electronics
Publication Date: Jan. 01, 1900
Vol. 35, Issue 5, 523 (2018)
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Quantum image watermarking algorithm based on blocked spatial domain
Hairu GUO, Yaying DU, and Quan Xu
Based on the least significant bit(LSB) image watermarking in spatial domain and a novel enhanced quantum representation(NEQR) quantum image representation model, a new and more secure quantum image watermarking algorithm is proposed. By dividing the carrier image into blocks, the watermarking image can be embedded mor
Based on the least significant bit(LSB) image watermarking in spatial domain and a novel enhanced quantum representation(NEQR) quantum image representation model, a new and more secure quantum image watermarking algorithm is proposed. By dividing the carrier image into blocks, the watermarking image can be embedded more uniformly in every region of the carrier image, so the algorithm has good shearing resistance. The watermarking image is scrambled with the key before embedding the watermark, so the algorithm has good security. A quantum bit comparator is used to determine the specific location of the watermark embedded in the spatial domain of the carrier image, so the algorithm reflects better robustness. The proposed algorithm adopts a single operation method, and it has relatively low complexity and higher peak signal-to-noise ratio(PSNR). The experimental simulation is designed for the specifically embedded and extracted circuit diagram, and feasibility of the proposed algorithm is verified. Experimental results show that the proposed algorithm has a higher PSNR..
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Chinese Journal of Quantum Electronics
Publication Date: Jan. 01, 1900
Vol. 35, Issue 5, 527 (2018)
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Temperature control system of excimer laser based on Smith prediction compensation
Chenglin ZHU, Xiaoquan HAN, Zebin FENG, and Mingqing HU
Aiming at the large time delay characteristics of excimer laser temperature control system, the model identification of excimer laser temperature control system is carried out using MATLAB, and a new Smith-PID prediction compound controller is designed. On this basis, two kinds of controllers are simulated and experime
Aiming at the large time delay characteristics of excimer laser temperature control system, the model identification of excimer laser temperature control system is carried out using MATLAB, and a new Smith-PID prediction compound controller is designed. On this basis, two kinds of controllers are simulated and experimented respectively. Results show that compared with the conventional PID controllers, the overshoot of Smith-PID prediction compound controller is reduced by 41% and the adjustment time is reduced by 51%. The designed controller has the advantages of strong robustness, small overshoot and short adjusting time, which can provide a favorable temperature control environment for the operation of excimer lasers..
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Chinese Journal of Quantum Electronics
Publication Date: Jan. 01, 1900
Vol. 35, Issue 5, 533 (2018)
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Photoelectron emission characteristics of photocathode by Monte Carlo method
Li GU, Xiang LI, Junlan ZHOU, Qinlao YANG, and Baoping GUO
Temporal characteristics of photoelectrons emitted by photoelectric cathodes affect the temporal resolution of time analysis instruments such as streak cameras and electron diffraction systems. Energy, angle distribution model and stochastic sampling method of photoelectrons are investigated by Monte Carlo method. The
Temporal characteristics of photoelectrons emitted by photoelectric cathodes affect the temporal resolution of time analysis instruments such as streak cameras and electron diffraction systems. Energy, angle distribution model and stochastic sampling method of photoelectrons are investigated by Monte Carlo method. The fast multiplicative sampling method is given for the cosine and Maxwell distribution of energy. Time dispersion values of seven energy models of photoelectron, such as cosine, Maxwell, Beta, Rayleigh and Henke distribution, are calculated. The dispersion coefficient of time dispersion formula is verified to be 2.643 kg1/2·A-1·s-1, and the exponential relationship with the accelerated electric field strength is -0.996. The method and results are useful in the fields such as dynamics of femtosecond photoelectron propagation, femtosecond streak cameras, femtosecond electron diffractometer..
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Chinese Journal of Quantum Electronics
Publication Date: Jan. 01, 1900
Vol. 35, Issue 5, 539 (2018)
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A filtering system based on time lens
Xingyun LIU, Huoxiang YANG, Xinhao LIU, Xinglin HUANG, and Yuting XIA
The filtering of ultra-short optical pulse is always a conundrum, and it is difficult for ordinary optical devices to distinguish the picosecond level optical pulses. Based on time lens technology, a filtering system for ultra-short optical pulses is developed. An optical pulse passes through a Fourier transform system
The filtering of ultra-short optical pulse is always a conundrum, and it is difficult for ordinary optical devices to distinguish the picosecond level optical pulses. Based on time lens technology, a filtering system for ultra-short optical pulses is developed. An optical pulse passes through a Fourier transform system which is composed of standard single mode fiber(SSMF) and time lens, and it’s intercepted by an optical switch after Fourier transformation. The truncated pulse passes through an inverse Fourier transformation system composed of time lens and SSMF again, and the filtered waveform is obtained. The experimental results show that the time resolution reaches the picosecond level. The proposed method adopts an all-optical system with simple structure and good real-time performance..
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Chinese Journal of Quantum Electronics
Publication Date: Jan. 01, 1900
Vol. 35, Issue 5, 544 (2018)
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Correlation delay shift keying chaotic communication based on quantum key distribution
Hui LI, and Yingjie WANG
For the shortcomings of correlation delay shift keying chaotic communication system, mutual interference between the adjacent bits leads to high bit error rate, a Hadamard code correlation delay shift keying chaotic communication scheme based on quantum key distribution protocol is proposed. In the system transmitter,
For the shortcomings of correlation delay shift keying chaotic communication system, mutual interference between the adjacent bits leads to high bit error rate, a Hadamard code correlation delay shift keying chaotic communication scheme based on quantum key distribution protocol is proposed. In the system transmitter, the chaotic signal through Hadamard function for spreading spectrum is used as reference signal, and the sent signal is a sum of the reference signal, delay signal and data modulation signal, and the system delay time is determined by quantum protocol distribution. Simulation results show that because of the orthogonally of Hadamard function, the proposed system can well eliminate the mutual interference between adjacent bits and keep the advantages of original correlation delay shift keying, such as chaotic communication scheme, reducing system bit error rate. Moreover, the proposed system has quantum key distribution protocol with high security..
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Chinese Journal of Quantum Electronics
Publication Date: Jan. 01, 1900
Vol. 35, Issue 5, 550 (2018)
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Quantum voting protocol based on controlled quantum secure direct communication
Jiaqi QIN, Runhua SHI, and Rui ZHANG
Based on the controlled quantum secure direct communication(CQSDC), a quantum voting protocol with Greenberger-Horne-Zeilinger(GHZ)-like state is proposed. In the proposed protocol, the supervisor Charlie is responsible for establishing GHZ-like quantum channels and supervising the behavior of the voter Alice and the t
Based on the controlled quantum secure direct communication(CQSDC), a quantum voting protocol with Greenberger-Horne-Zeilinger(GHZ)-like state is proposed. In the proposed protocol, the supervisor Charlie is responsible for establishing GHZ-like quantum channels and supervising the behavior of the voter Alice and the teller Bob. Alice generates and sends out the vote according to the voting rules and her own wishes, and Bob decodes the vote and counts it with the help of Charlie. The proposed protocol does not require a quantum state to be transmitted between Alice and Bob as a ticket, only measuring the owned particles and transmitting the information through the classic bits. Compared with other quantum voting protocols, the proposed protocol makes full use of the CQSDC and entanglement swapping principle, and it improves the voting efficiency significantly..
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Chinese Journal of Quantum Electronics
Publication Date: Jan. 01, 1900
Vol. 35, Issue 5, 558 (2018)
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An efficient quantum double sequential blind signature protocol based on oblivious quantum key distribution
Zhenyu LUO, Runhua SHI, Hong ZHONG, and Min XU
Based on oblivious quantum key distribution(OQKD), an efficient quantum double sequential blind signature protocol is proposed. The message owner computes the Hash value of a classical message to be signed and encodes the value as a quantum message. The encoded quantum messages are divided into two parts equally, and t
Based on oblivious quantum key distribution(OQKD), an efficient quantum double sequential blind signature protocol is proposed. The message owner computes the Hash value of a classical message to be signed and encodes the value as a quantum message. The encoded quantum messages are divided into two parts equally, and they are sent to two signatures respectively. The signer and message owner build the oblivious sharing information to implement the signature by using OQKD. The proposed protocol does not require the preparation of any entanglement resource, and it only needs to perform single-particle projective measurements, which is easy to implement under the present technology conditions. Compared with the existing double blind signature protocols, the complexity of proposed protocol reduces obviously, and its efficiency improves significantly..
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Chinese Journal of Quantum Electronics
Publication Date: Jan. 01, 1900
Vol. 35, Issue 5, 567 (2018)
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Optimal scheme of quantum teleportation participated by generalized GHZ state
Guoshuai ZHANG, and Daoyun XU
In quantum teleportation with only generalized GHZ state participating, a kind of teleportation scheme of saving quantum resource is designed by analyzing the relationship between the quantum state to be transmitted, quantum channel and joint measurement base. In the problem of non-maximum generalized three-particle GH
In quantum teleportation with only generalized GHZ state participating, a kind of teleportation scheme of saving quantum resource is designed by analyzing the relationship between the quantum state to be transmitted, quantum channel and joint measurement base. In the problem of non-maximum generalized three-particle GHZ state quantum teleportation, arbitrary two generalized four-particle GHZ states are used as quantum channels. By analyzing the unitary transformation performed by the receiver, it’s found that when entanglement type of the non-maximum generalized three-particle GHZ state is consistent with that of the last three particles of the quantum channel, and the entanglement type of the joint measurement base and the first of the four particles in initial state are the same, the matrix that the receiver performs unitary transformation is the simplest. Results show that the optimal GHZ state quantum channel and GHZ state measurement basis selected for efficient invisible transmission are determined by entanglement type of the non-maximal generalized GHZ state to be transmitted..
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Chinese Journal of Quantum Electronics
Publication Date: Jan. 01, 1900
Vol. 35, Issue 5, 576 (2018)
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Tripartite entanglement and nonlocality in three-photon generalized GHZ states
Jiaqiang ZHAO, Lianzhen CAO, Yang YANG, and Huaixin LU
A set of new Bell inequalities with universality can clearly describe the relationship between the nonlocality and three-body entanglement of three-qbit generalized Greenberger-Horne-Zeilinger(GGHZ) states. Three-photon GGHZ entangled states are prepared by using high-energy femtosecond laser parametric conversion. The
A set of new Bell inequalities with universality can clearly describe the relationship between the nonlocality and three-body entanglement of three-qbit generalized Greenberger-Horne-Zeilinger(GGHZ) states. Three-photon GGHZ entangled states are prepared by using high-energy femtosecond laser parametric conversion. The state fidelity calculated by quantum state chromatography is 84%. A novel Bell operator and Bell inequality are measured based on the high fidelity three-photon GGHZ state. The results are in agreement with the theory, and the theoretical results proposed by Das are verified by experiments. Experimental results show that the violation to the local realism of the new Bell inequality increases monotonously with the increasing of GGHZ states entanglement degree. The nonlocality of GGHZ states is directly related to the degree of three-body entanglement..
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Chinese Journal of Quantum Electronics
Publication Date: Jan. 01, 1900
Vol. 35, Issue 5, 583 (2018)
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Optical absorption properties in one-dimensional graphene-based photonic crystals
Huimin FANG, Min TIAN, Shiqi CHANG, Jianxin LIU, and Jijiang WU
The optical absorption properties of one-dimensional graphene-based photonic crystal(GBPC) are investigated based on transfer matrix method. Influences of absorption characteristics of GBPC on the chemical potential of graphene, relative dielectric constant of dielectric layers, thickness of dielectric layers and incid
The optical absorption properties of one-dimensional graphene-based photonic crystal(GBPC) are investigated based on transfer matrix method. Influences of absorption characteristics of GBPC on the chemical potential of graphene, relative dielectric constant of dielectric layers, thickness of dielectric layers and incident angle are obtained. Results show that the absorption frequency band of GBPC can be dynamically tuned by changing the chemical potential of grapheme. The wideband absorption properties of GBPC are insensitive to the relative dielectric constant, thickness of the dielectric layers and incident angle within a certain range. Results provide the theoretical basis for the design of GBPC wideband absorbers..
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Chinese Journal of Quantum Electronics
Publication Date: Jan. 01, 1900
Vol. 35, Issue 5, 589 (2018)
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Laser intensity influence on up-conversion luminescence control in Dy
3+
-doped glass
Pei LIU, Wenjing CHENG, Dalong QI, Ye ZHENG, Yunhua YAO, and Shian ZHANG
The up-conversion luminescence of rare-earth ions is an important fundamental research for understanding the multi-photon excitation processes and up-conversion luminescence mechanism. The up-conversion luminescence control of Dy3+-doped glass are investigated theoretically and experimentally by using square wave modul
The up-conversion luminescence of rare-earth ions is an important fundamental research for understanding the multi-photon excitation processes and up-conversion luminescence mechanism. The up-conversion luminescence control of Dy3+-doped glass are investigated theoretically and experimentally by using square wave modulated femtosecond pulse as excitation light source. Results show that up-conversion luminescence has different control efficiency with the higher or lower laser intensity. The physical control mechanism is further investigated by considering the higher-order multi-photon absorption process, and the up-conversion luminescence multi-photon absorption includes two-photon and four-photon absorption process. The relative weight of four-photon absorption in the whole excitation process increases with increasing of laser intensity. Due to the destructive interference between two-photon and four-photon transition pathways, up-conversion luminescence exhibits different control behaviors at different laser intensity. At high laser intensity, the observation of higher-order multi-photon absorption processes in rare earth ions can provide a clear physical picture for understanding the up-conversion luminescence mechanism, and a new way for tuning the up-conversion luminescence..
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Chinese Journal of Quantum Electronics
Publication Date: Jan. 01, 1900
Vol. 35, Issue 5, 594 (2018)
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Influence of nonlinear dispersion on Gauss pulse transmission
Junkun HUANG, Shaowu ZHANG, and Chong WAN
The nonlinear Schrdinger equation(NLSE) including cubic-quintic nonlinearity and Kerr dispersion term is solved by variational method. Evolution equations of Gaussian pulse parameters versus propagation distance with different parameters are derived. Results show that under certain conditions, the pulses propagate sta
The nonlinear Schrdinger equation(NLSE) including cubic-quintic nonlinearity and Kerr dispersion term is solved by variational method. Evolution equations of Gaussian pulse parameters versus propagation distance with different parameters are derived. Results show that under certain conditions, the pulses propagate stably in the form of breather within a certain distance. Under the strong Kerr dispersion effect, the intensity change of solitons will increase, and the peaks will become sharp during propagation..
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Chinese Journal of Quantum Electronics
Publication Date: Jan. 01, 1900
Vol. 35, Issue 5, 603 (2018)
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Chopping frequency control method in lidar system based on Kalman fuzzy adaptive PID
Xianyu WANG, Xin FANG, and Tao LI
In order to improve the stability of chopping height of lidar echo signal, a fuzzy self-adaptive PID control method is proposed for the high speed and high torque control system of DC brushless motor in the subsequent optical path of ozone detection lidar system. On-line automatic tuning of PID parameters in different
In order to improve the stability of chopping height of lidar echo signal, a fuzzy self-adaptive PID control method is proposed for the high speed and high torque control system of DC brushless motor in the subsequent optical path of ozone detection lidar system. On-line automatic tuning of PID parameters in different states by fuzzy reasoning is realized, and Kalman filter is used to reduce the interference of control and measurement noise. Based on control theory, performance simulation of the control algorithm is carried out using Matlab software, and control algorithm of the system is realized in LabVIEW software platform. Results show that compared with the conventional PID control method, step response time of laser chopping frequency based on the fuzzy self-adaptive PID control method is reduced by 33.3%, delay time is shorten by 60%, and rise time is reduced by 42.1%. The frequency jitter of chopper disc is only about 0.0492 Hz. The fuzzy self-adaptive PID control system has smaller steady state error, better adaptability and robustness, and better anti-interference performance..
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Chinese Journal of Quantum Electronics
Publication Date: Jan. 01, 1900
Vol. 35, Issue 5, 608 (2018)
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Performance test of antenna matching circuit for intelligent optical distribution frame
Xinghua TU, and Zhuo ZHANG
The implementation of broadband strategy brings huge access network pipeline resources, which makes operators more and more urgent for low-cost and high efficiency optical distribution network(ODN). There are many problems in the construction, maintenance and operation of the traditional ODN, which seriously hinders th
The implementation of broadband strategy brings huge access network pipeline resources, which makes operators more and more urgent for low-cost and high efficiency optical distribution network(ODN). There are many problems in the construction, maintenance and operation of the traditional ODN, which seriously hinders the optical access network development. The intelligent ODN technology emerges at the historic moment. Intelligent ODN can solve the problem of traditional ODN pipeline resource management confusion. Radio frequency identification intelligent tags model are used to design the antenna matching circuit in the port informationalized hardware circuits. When some parameter in the circuit is changed, the read and write performance of antenna will change, such as the vertical and offset distances. The optimal operating parameters of the circuit can be optimized by plotting the parametric relation curves..
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Chinese Journal of Quantum Electronics
Publication Date: Jan. 01, 1900
Vol. 35, Issue 5, 618 (2018)
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Polaron Rashba effect in a triangular quantum well
[in Chinese]
The influence of Rashba effect on the properties of polaron in a triangular quantum well is investigated with LLP variational method and the expression of the polaron ground state energy is derived. The relations of the ground state energy with the wave vector, electron areal density and electron-phonon coupling streng
The influence of Rashba effect on the properties of polaron in a triangular quantum well is investigated with LLP variational method and the expression of the polaron ground state energy is derived. The relations of the ground state energy with the wave vector, electron areal density and electron-phonon coupling strength are discussed, respectively. Results show that the ground state energy is an increasing function of the wave vector and electron areal density, and it is a decreasing function of the electron-phonon coupling strength. Due to the Rashba effect, the ground state energy splits into two branches..
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Chinese Journal of Quantum Electronics
Publication Date: Jan. 01, 1900
Vol. 35, Issue 5, 625 (2018)
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Refractive index sensing based on micro-nano fiber resonant ring
Xinyi ZHANG, Yuhao QIAN, and Zuxing ZHANG
A LOOP-type micro-nano fiber resonant ring is fabricated. The factors influencing the shape and characteristics of the resonant ring are analyzed, and it is applied to the refractive index sensing experiment. Results show that the free spectral range of the micro-nano fiber resonant ring is inversely proportional to th
A LOOP-type micro-nano fiber resonant ring is fabricated. The factors influencing the shape and characteristics of the resonant ring are analyzed, and it is applied to the refractive index sensing experiment. Results show that the free spectral range of the micro-nano fiber resonant ring is inversely proportional to the ring size. With increasing of the external refractive index, spectrum of the micro-nano fiber resonant ring shows a tendency to shift to long wavelength. That is to say, the red shift phenomenon occurs. There is a linear relationship between the red shift of the wavelength and the refractive index, and the refractive index sensitivity of 1427.86 nm/RIU is achieved. The designed refractive index sensing structure based on micro-nano fiber resonant ring is simple, integrated and sensitive..
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Chinese Journal of Quantum Electronics
Publication Date: Jan. 01, 1900
Vol. 35, Issue 5, 631 (2018)
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Angle-insensitive color filter based on sub-wavelength grating microstructure
Jiamei GU, Siqi ZHANG, Hongyi ZHOU, and Gaige ZHENG
Based on the electromagnetic wave propagation and abnormal transmission characteristics of metal gratings in the visible light band(400~760 nm), a color filter composed of substrate, dielectric/metal composite structure and metal grating layer is designed and implemented. Influences of structural parameters on transmis
Based on the electromagnetic wave propagation and abnormal transmission characteristics of metal gratings in the visible light band(400~760 nm), a color filter composed of substrate, dielectric/metal composite structure and metal grating layer is designed and implemented. Influences of structural parameters on transmission spectrum are systematically analyzed by using effective medium theory(EMT) and rigorous coupled wave analysis(RCWA) method. Results show that the designed grating structure can effectively improve angle tolerance of the filter. The optimized structure parameters of red, green and blue(RGB) filters are obtained, and the spectral output with both high transmittance and angle insensitivity is obtained. The resonant wavelengths of the filters corresponding to red, green and blue are 705, 590, 452 nm, and the transmittance extremum reaches 66.4%, 81.24% and 81.23% respectively..
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Chinese Journal of Quantum Electronics
Publication Date: Jan. 01, 1900
Vol. 35, Issue 5, 636 (2018)
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