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Chinese Journal of Quantum Electronics
Contents
2014
Volume: 31 Issue 4
17 Article(s)
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Research Article
Fundamental and frontiers of transformation optics
Yong-liang ZHANG, Xian-zi DONG, Xuan-ming DUAN, and Zhen-sheng ZHAO
Transformation optics which relies on the formal invariance of Maxwell’s equations under a spatial coordinate transformation, plays important roles in various branches of modern optics and technical application by providing schemes to tailor electromagnetic fields into desired spatial patterns. The concept development
Transformation optics which relies on the formal invariance of Maxwell’s equations under a spatial coordinate transformation, plays important roles in various branches of modern optics and technical application by providing schemes to tailor electromagnetic fields into desired spatial patterns. The concept development of transformation optics was reviewed and a briefly introduction was provided for the physical principles of transformation optics. Typical applications were discussed including invisibility cloaking, illusion optics and waveguiding and extensions on the manipulation of sonic waves, heat flows and quantum waves. Potential future developments of the concepts and applications of transformation optics were also discussed..
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Chinese Journal of Quantum Electronics
Publication Date: Jan. 01, 1900
Vol. 31, Issue 4, 385 (2014)
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All solid-state Raman lasers
Ya-xian FAN, and Hui-tian WANG
All solid-state Raman lasers have attracted great attention for various applications in the areas of medicine, biomedicine, optical communication, environmental control, and so on, due to their advantages such as simple, robust, efficient, and versatile. And solid-state Raman laser can offer good beam quantity, flexibl
All solid-state Raman lasers have attracted great attention for various applications in the areas of medicine, biomedicine, optical communication, environmental control, and so on, due to their advantages such as simple, robust, efficient, and versatile. And solid-state Raman laser can offer good beam quantity, flexible wavelength in the infrared and visible spectral ranges by simply choosing different crystals in combination with frequency doubling technology. An overview of solid-state Raman lasers was present, and then our research work was highlighted in Nd:YVO4 solid-state laser using BaWO4, SrWO4 and YVO4 as the Raman medium in continuous operation and eye-safe quasi-continuous operation. At last the future development trends of solid-state Raman lasers were discussed..
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Chinese Journal of Quantum Electronics
Publication Date: Jan. 01, 1900
Vol. 31, Issue 4, 394 (2014)
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Research advances of single-longitudinal-mode Q-switched fiber lasers
Wen-cai LI, Hu LONG, Su-juan FENG, and Qing-he MAO
Single-longitudinal-mode Q-switched laser sources are widely used in various fields such as precision measurements. The fiber laser is one of new-generation solid-state laser with many excellent properties. Recently lots of techniques for single-longitudinal-mode Q-switched fiber lasers were rapidly developed. The oper
Single-longitudinal-mode Q-switched laser sources are widely used in various fields such as precision measurements. The fiber laser is one of new-generation solid-state laser with many excellent properties. Recently lots of techniques for single-longitudinal-mode Q-switched fiber lasers were rapidly developed. The operation principles, current available techniques and possible development trends of fiber lasers for single-longitudinal-mode Q-switched pulses, including both introducing the Q-switch into the single-longitudinal-mode fiber laser and injecting a single-longitudinal-mode laser seed into the Q-switched fiber laser, are comprehensively overviewed..
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Chinese Journal of Quantum Electronics
Publication Date: Jan. 01, 1900
Vol. 31, Issue 4, 403 (2014)
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Few-mode FBG-based all-fiber laser generating cylindrical vector beam
Biao SUN, Li-xin XU, An-ting WANG, and Chun GU
Cylindrical vector beam (CVB) including radially polarized and azimuthally polarized beam has drawn great attention because of their unique features in intensity and electrical distributions which are applied in variety of area such as plasmon excitation, optical tweezers and high-resolution metrology. Few-mode fibers
Cylindrical vector beam (CVB) including radially polarized and azimuthally polarized beam has drawn great attention because of their unique features in intensity and electrical distributions which are applied in variety of area such as plasmon excitation, optical tweezers and high-resolution metrology. Few-mode fibers are used to generate CVB due to their second order eigenmodes, TM01 and TE01 are exactly of radial and azimuthal polarization. Methods of all-fiber laser generating CVB based on few-mode fiber Bragg grating (FMFBG) are introduced..
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Chinese Journal of Quantum Electronics
Publication Date: Jan. 01, 1900
Vol. 31, Issue 4, 412 (2014)
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The quantum optical effects of metamaterial
Shu-ming WANG, Hui LIU, and Shi-ning ZHU
As a new kind of artificial materials, metamaterials have attracted wide attention, because they can present special properties which not exist naturally or hard be realized. Based on the quantized method of the LC circuit model, our group has studied the elementary excitation in metamaterial and introduced its “quasi-
As a new kind of artificial materials, metamaterials have attracted wide attention, because they can present special properties which not exist naturally or hard be realized. Based on the quantized method of the LC circuit model, our group has studied the elementary excitation in metamaterial and introduced its “quasi-particle”. By using the two-photon inference, the quantum property of metamaterial and the correctness of the quantized method were proved. This quantized method was further used to investigate the interaction between metamaterial and active material, and the amplification by the stimulated emission radiation can be found in this system. These results show that metamaterials not only can steer the light in classical regime but also have a potential application in quantum optics..
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Chinese Journal of Quantum Electronics
Publication Date: Jan. 01, 1900
Vol. 31, Issue 4, 419 (2014)
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All-optical control of surface plasmon polaritons based on metal slit structures
Jian-jun CHEN, Zhi LI, and Qi-huang GONG
Surface plasmon polaritons (SPPs), the electromagnetic fields propagating along the metal-dielectric interface, are regard as the promising candidate of the next photonic integrated circuits. Several metal slit structures based on the SPPs are summarized. By using the Fabry-Perot resonator effect, Fano resonance, and m
Surface plasmon polaritons (SPPs), the electromagnetic fields propagating along the metal-dielectric interface, are regard as the promising candidate of the next photonic integrated circuits. Several metal slit structures based on the SPPs are summarized. By using the Fabry-Perot resonator effect, Fano resonance, and multimode interference, the SPP propagation could be controlled and modulated by these metal slit structures. As a result, a subwavelength unidirectional SPP generator, a submicron broad unidirectional SPP generator, submicron SPP splitters, nano-focusing devices, and submicron all-optical switches were realized in the metal slit structures. These nano-plasmonic devices have important applications in highly integrated photonics..
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Chinese Journal of Quantum Electronics
Publication Date: Jan. 01, 1900
Vol. 31, Issue 4, 428 (2014)
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Quantum manipulation of Bose-Einstein condensation
Xu-zong CHEN, and Xiao-ji ZHOU
Bose-Einstein condensation (BEC) is the frontier research field of atomic and molecular physics. There have been dozens of groups which had obtained the BEC since the first BEC experiment was achieved successfully in 1995, a great number of dramatic results have been achieved. The quantum manipulation of the momentum B
Bose-Einstein condensation (BEC) is the frontier research field of atomic and molecular physics. There have been dozens of groups which had obtained the BEC since the first BEC experiment was achieved successfully in 1995, a great number of dramatic results have been achieved. The quantum manipulation of the momentum Bose-Einstein condensate by means of super-radiant scattering is one of the promising research topics. The cold atom physics group of Peking University implemented serial experiments on Bose-Einstein condensation superadiant scattering since they achieved BEC in experiment from 2004. It introduces the related experiments on quantum manipulation of the momentum Bose-Einstein condensate by means of superradiant scattering..
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Chinese Journal of Quantum Electronics
Publication Date: Jan. 01, 1900
Vol. 31, Issue 4, 433 (2014)
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A quantum memory for high-dimensional states
Dong-sheng DING, Zhi-yuan ZHOU, and Bao-sen SHI
Quantum network mainly consists of a memory used for storing and manipulating quantum information and an information carrier through which different memories can connect with others. Usually quantum information is encoded in a two-dimensional space of a photon, a robust information carrier. In this case, each photon ca
Quantum network mainly consists of a memory used for storing and manipulating quantum information and an information carrier through which different memories can connect with others. Usually quantum information is encoded in a two-dimensional space of a photon, a robust information carrier. In this case, each photon can carry a bit of information. If the photon can live in a high-dimensional space, then the information carried by each photon could be increased significantly, the channel capacity of the network and the transmission efficiency would then be greatly enlarged. Moreover, storing high-dimensional states in quantum memory leads to significant improvements in storage capacity. After briefly introducing the progresses achieved at home and abroad, a significant breakthrough was reviewed towards the realization of high-dimensional quantum memories based on a cold atomic ensemble in detail, and some basic problems remaining were proposed which need to be solved to build the future quantum internet..
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Chinese Journal of Quantum Electronics
Publication Date: Jan. 01, 1900
Vol. 31, Issue 4, 442 (2014)
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Unconditional security of quantum key distribution based on practical devices
Jin-dong WANG, and Zhi-ming ZHANG
Quantum key distribution (QKD) is one of the most active research fields in quantum information science and technology. It can provide a method to generate a shared secret key between two distant parties, and has unconditional security guaranteed by physics laws even if the eavesdropper Eve has unlimited computational
Quantum key distribution (QKD) is one of the most active research fields in quantum information science and technology. It can provide a method to generate a shared secret key between two distant parties, and has unconditional security guaranteed by physics laws even if the eavesdropper Eve has unlimited computational power and storage capacity. The unconditional security with the practical devices is an important problem in QKD research. The perfect secrecy of the one-time pad (OTP) and a model combining the OTP and the QKD are first introduced. The development of the unconditional security of the QKD is summarized. The emphasis is put on the quantum attack schemes based on practical systems and the corresponding countmeasures. The recent advances of the measurement device independent QKD (MDI-QKD) scheme are described in detail..
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Chinese Journal of Quantum Electronics
Publication Date: Jan. 01, 1900
Vol. 31, Issue 4, 449 (2014)
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Implementation of quantum error-correction code via spin-photon interactions
Jun LIU, Ping DONG, Wei SONG, and Zhuo-liang CAO
A scheme for implementing a three-qubit repetition quantum error-correction code with photon-spin interactions was presented. Polarizing beam splitters, photon detectors and micropillar cavities were used to realize quantum nondemolition measurement of the single spin, which are very important in quantum information pr
A scheme for implementing a three-qubit repetition quantum error-correction code with photon-spin interactions was presented. Polarizing beam splitters, photon detectors and micropillar cavities were used to realize quantum nondemolition measurement of the single spin, which are very important in quantum information processing. It is shown that this scheme is feasible in the current experimental technology..
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Chinese Journal of Quantum Electronics
Publication Date: Jan. 01, 1900
Vol. 31, Issue 4, 459 (2014)
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Progress in near-infrared quantum cutting of Tb
3+
-Yb
3+
ion pair
Xiao-dong YANG, Xiao-bo CHEN, Luan CHEN, Gu ZHOU, Qian FENG, Shui-feng WANG, Jie LIU, Song LI, Jin-ying LIU, Yu-sheng ZHOU, Ya-fei WANG, and Huan-li CHENG
Near-infrared quantum cutting is a promising approach to enhance the efficiency of silicon solar cells. There are many different kinds of rare earth elements, and each of them has abundant energy levels. Researchers prepare luminescent materials doped with rare earth elements, measure the absorption spectra, excitation
Near-infrared quantum cutting is a promising approach to enhance the efficiency of silicon solar cells. There are many different kinds of rare earth elements, and each of them has abundant energy levels. Researchers prepare luminescent materials doped with rare earth elements, measure the absorption spectra, excitation spectra and emission spectra of the materials. According to these data, the quantum efficiency of luminescent materials was calculated. The Tb3 +-Yb3 + ion pair drawed people’s attention. Upon excitation of Tb3 + ion with a ultraviolet-visible photon, Yb3 + ion can emit two near-infrared photons around 1000 nm through cooperative energy transfer from Tb3 + ion to Yb3 + ion. The near-infrared photons can be absorbed by silicon solar cells. The quantum efficiency varies from concentration of Tb3 + /Yb3 + ions as well as the matrix of material..
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Chinese Journal of Quantum Electronics
Publication Date: Jan. 01, 1900
Vol. 31, Issue 4, 466 (2014)
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Femtosecond laser two-photon micro/nanofabrication with visible wavelengths
Shu CHEN, Mei-ling ZHENG, Xian-zi DONG, Xuan-ming DUAN, and Zhen-sheng ZHAO
Two-photon point spread functions of several tightly focused visible lasers were calculated based on the vectorial diffraction theory. The calculated result shows that the two-photon absorption region reduces with the decrease of laser wavelength. Femtosecond laser sources with visible wavelengths were employed to perf
Two-photon point spread functions of several tightly focused visible lasers were calculated based on the vectorial diffraction theory. The calculated result shows that the two-photon absorption region reduces with the decrease of laser wavelength. Femtosecond laser sources with visible wavelengths were employed to perform the two-photon polymerization fabrication, and the fabrication resolution and threshold were analyzed. The experimental results indicate that lower photon flux density leads to the improvement of fabrication resolution. The decrease of laser wavelength causes the two-photon transition to meet near resonance transition condition gradually, which further increases the two-photon transition probability and reduces the fabrication threshold..
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Chinese Journal of Quantum Electronics
Publication Date: Jan. 01, 1900
Vol. 31, Issue 4, 472 (2014)
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Monitoring aerosol extinction with cavity enhanced/ring-down spectroscopy: A brief review
Xue-zhe XU, Wei-xiong ZHAO, Mei-li DONG, Xue-jun GU, Chang-jin HU, Yan-bo GAI, Xiao-ming GAO, Wei HUANG, and Wei-jun ZHANG
Cavity-enhanced/ring-down spectroscopy is one of the most widely used spectroscopy techniques for the high sensitivity, real time, in-situ measurement of aerosol extinction coefficient. The nature suspended state of aerosol is not changed during the measurement. After nearly 30 years development, the techniques are wel
Cavity-enhanced/ring-down spectroscopy is one of the most widely used spectroscopy techniques for the high sensitivity, real time, in-situ measurement of aerosol extinction coefficient. The nature suspended state of aerosol is not changed during the measurement. After nearly 30 years development, the techniques are well developed. The instrument based on cavity-enhanced/ring-down method was served as a standard instrument for the intercomparisons with other optical measurement instruments. The development and the application of cavity-enhanced/ring-down spectroscopy for aerosol extinction measurement were briefly reviewed..
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Chinese Journal of Quantum Electronics
Publication Date: Jan. 01, 1900
Vol. 31, Issue 4, 477 (2014)
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Research progress in 4H-SiC-based ultraviolet photodetectors
Jia-fa CAI, and Zheng-yun WU
Advances in 4H silicon carbide (4H-SiC) as a potential material for low-level ultraviolet (UV) radiation detection application at high-temperature, radiation hardened conditions are introduced. The latest progress in development of and the current state-of-art of different types of 4H-SiC-based UV photodetectors are re
Advances in 4H silicon carbide (4H-SiC) as a potential material for low-level ultraviolet (UV) radiation detection application at high-temperature, radiation hardened conditions are introduced. The latest progress in development of and the current state-of-art of different types of 4H-SiC-based UV photodetectors are reviewed. The approaches to improve the performances of the 4H-SiC-based photodetectors such as reducing the dark current and enhancing the photo responsivity are presented. The outlook for the development of 4H-SiC-based UV photodetectors are discussed..
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Chinese Journal of Quantum Electronics
Publication Date: Jan. 01, 1900
Vol. 31, Issue 4, 489 (2014)
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Mechanism of non-imaging lens’ all-reflection Fourier transform imaging structure spectrometer
Yuan ZHAO, and Guang-xing ZHAO
All-reflection Fourier transform imaging spectrometer has important application in the fields of aerospace remote sensing etc. The specifical set of the cylindrical lens and collimation system causes the optical structure sophisticated and difficult in design, installation and maintenance. A structure without imaging l
All-reflection Fourier transform imaging spectrometer has important application in the fields of aerospace remote sensing etc. The specifical set of the cylindrical lens and collimation system causes the optical structure sophisticated and difficult in design, installation and maintenance. A structure without imaging lens was proposed to achieve the imaging spectral detection, which shows the feasibility of achieving imaging spectral detection. The spectral detection simulation experiments of wavelength 632.8 nm, 940 nm and 3000 nm show that it’s deviation of spectral measurement is less than 1%..
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Chinese Journal of Quantum Electronics
Publication Date: Jan. 01, 1900
Vol. 31, Issue 4, 502 (2014)
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Spatial solitons in Kerr dual-periodic PT symmetric optical lattices
Qia-wu LIN, Qing-wen XIE, Zhi-hua LUO, Zhi-wei SHI, and Hua-gang LI
Spatial solitons were numerically studied in Kerr dual-periodic parity-time(PT) symmetric optical lattices. The bandgap structures of this optical lattices were obtained by using plane wave expansion method, and the phase transition point was obtained at the same time. The existence and stability of the spatial soliton
Spatial solitons were numerically studied in Kerr dual-periodic parity-time(PT) symmetric optical lattices. The bandgap structures of this optical lattices were obtained by using plane wave expansion method, and the phase transition point was obtained at the same time. The existence and stability of the spatial solitons were numerically studied in this optical lattices. The results showed that the stable range of the solitons located on different period waveguide is different..
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Chinese Journal of Quantum Electronics
Publication Date: Jan. 01, 1900
Vol. 31, Issue 4, 507 (2014)
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Chinese Journal of Quantum Electronics
Publication Date: Jan. 01, 1900
Vol. 31, Issue 4, 1 (2014)
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