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Acta Optica Sinica
Contents
1993
Volume: 13 Issue 10
21 Article(s)
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Holography
Programmable optical parallel binary double-out logic processor based on multiple-imaging
[in Chinese], [in Chinese], and [in Chinese]
Based on multiple-imaging, an optical parallel pattern login processor is proposed in this paper. The input pattern is encoded by the combination of two patterns and two negative patterns. All sixteen logic operations can be implemented, and the required logic functions in the two independent output channels can be red
Based on multiple-imaging, an optical parallel pattern login processor is proposed in this paper. The input pattern is encoded by the combination of two patterns and two negative patterns. All sixteen logic operations can be implemented, and the required logic functions in the two independent output channels can be redized by customizing the states of four polarizers. Experimental results are also presented..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 13, Issue 10, 908 (1993)
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Self-imaging phenomenon and Lau effect under the illumination of spatially periodic coherent light
[in Chinese], and [in Chinese]
The self-imaging phenomenon and Lau effect under the illumuination of spatially periodic coherent light are analyzed by means of ambiguity function theory. Theoretical results show that the self- imaging phenomenon and Lau effect may occur when the illumination sources satisfy a certain condition. The posssible applica
The self-imaging phenomenon and Lau effect under the illumuination of spatially periodic coherent light are analyzed by means of ambiguity function theory. Theoretical results show that the self- imaging phenomenon and Lau effect may occur when the illumination sources satisfy a certain condition. The posssible applications of these phenomena are discussed according to the analysis results..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 13, Issue 10, 913 (1993)
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Measuring method of relief depth and refractive index variation in a holographic phase medium
[in Chinese], [in Chinese], [in Chinese], and [in Chinese]
The paper presents a method of measuring relief depth and refractive index variation in holographic phase media. By the method an reflection interference microscope and a micro-computer with a CCD camera are used in testing, and can obtain highly precise data of them. In the paper, the testing error is analysed, the op
The paper presents a method of measuring relief depth and refractive index variation in holographic phase media. By the method an reflection interference microscope and a micro-computer with a CCD camera are used in testing, and can obtain highly precise data of them. In the paper, the testing error is analysed, the optimum conditions which make the measuring system keep its highest accuracy are given..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 13, Issue 10, 919 (1993)
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A new holographic recording material-dichromated cellulose triacetate
[in Chinese], [in Chinese], [in Chinese], and [in Chinese]
In this paper, a new holographic recording material:dichromated-cellulose triacetate is presented. The holograms made of this material have stronger real time effect, higher diffraction efficiency, better anti-humidity and environmental stability, etc. Meanwhile, the imaging mechanism is analysed, and the holographic c
In this paper, a new holographic recording material:dichromated-cellulose triacetate is presented. The holograms made of this material have stronger real time effect, higher diffraction efficiency, better anti-humidity and environmental stability, etc. Meanwhile, the imaging mechanism is analysed, and the holographic characteristics are studied experimentally..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 13, Issue 10, 924 (1993)
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Integrated Optics
Exact dispersion relation for TM waves guided by nonlinear three-layer planar waveguide
[in Chinese], and [in Chinese]
Exact dispersion relations for TM waves guided by thin dielectric films covered on one or two sides media of intensity-dependent refractive indexes have been derived. Numerical results for symmetric structure are in good agreement with that obtained by the finite element method.
Exact dispersion relations for TM waves guided by thin dielectric films covered on one or two sides media of intensity-dependent refractive indexes have been derived. Numerical results for symmetric structure are in good agreement with that obtained by the finite element method..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 13, Issue 10, 929 (1993)
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Lasers and Laser Optics
A novel mode locking technique for CW Nd:YAG laser
[in Chinese], [in Chinese], [in Chinese], [in Chinese], and [in Chinese]
A new mode locking technique for CW Nd:YAG laser by moving one of the cavity mirror is reported. Pulse- trains with averege FWHM of 60 ps are obtained. An explanation accounting for the experimental results is presented, indicating that the mode locking is in essence a kind of enhanced self-mode locking.
A new mode locking technique for CW Nd:YAG laser by moving one of the cavity mirror is reported. Pulse- trains with averege FWHM of 60 ps are obtained. An explanation accounting for the experimental results is presented, indicating that the mode locking is in essence a kind of enhanced self-mode locking..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 13, Issue 10, 883 (1993)
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Generation and measurement of picosecond electrical pulse and the dispersion on stripline
[in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], and [in Chinese]
The configuration of optical switch and traveling-wave pockels cell (Cr:GaAs-LiTaO3) is described in this paper. Using Electro-Optic Sampling measurement with fs laser pulse as exciting and sampling beam, we have succeeded in generating and measuring ps ultrashort electrical pulse with a rise-time of 5 ps. Using Yamash
The configuration of optical switch and traveling-wave pockels cell (Cr:GaAs-LiTaO3) is described in this paper. Using Electro-Optic Sampling measurement with fs laser pulse as exciting and sampling beam, we have succeeded in generating and measuring ps ultrashort electrical pulse with a rise-time of 5 ps. Using Yamashita' s stripline design formula and under quasi-TEM mode approximation, we have analyzed the stripline dispersion and the wavefront distortion as the pa electrical pulse travels along the stripline. It is concluded that the short leading edge of ps electrical pulse was broadened and the slow decaying trailing edge was shortened because of the stripline dispersion..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 13, Issue 10, 888 (1993)
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A novel method for frequency-tracking and locking of laser diode
[in Chinese], [in Chinese], and [in Chinese]
We present here a novel method to track and lock the frequency of laser diode using the transmission spectrum of a Faraday anomalous dispersion optical filter (FADOF) as the frequency discrminato. The frequency stability obtained is better than 2.1×10-10 for 100 ms≤τ≤10 s sampling time. And by changing the intensi
We present here a novel method to track and lock the frequency of laser diode using the transmission spectrum of a Faraday anomalous dispersion optical filter (FADOF) as the frequency discrminato. The frequency stability obtained is better than 2.1×10-10 for 100 ms≤τ≤10 s sampling time. And by changing the intensity the intensity of magnetic field from 0.7×10-2 T to 2.2×102 T, we obtained a continuous frequency scan of more than 2 GHz..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 13, Issue 10, 893 (1993)
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Determination of electron density of laser-produced Y-Ba-Cu-O plasma with laser interferometry
[in Chinese], [in Chinese], [in Chinese], and [in Chinese]
The electron density of excimer (XeCl, 308 nm) laser-produced plasma near the surface of Y-Ba-Cu-O target has been diagnosed with laser interferometry. The results show that the electron density is about 1016-1017/cm3 when the laser power density is 3×108 W/cm2 and the background pressure is 1.33-13.3 Pa.
The electron density of excimer (XeCl, 308 nm) laser-produced plasma near the surface of Y-Ba-Cu-O target has been diagnosed with laser interferometry. The results show that the electron density is about 1016-1017/cm3 when the laser power density is 3×108 W/cm2 and the background pressure is 1.33-13.3 Pa..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 13, Issue 10, 897 (1993)
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Nonlinear Optics
A way of decreasing crystal half-wave voltage in optical bistable state
[in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], and [in Chinese]
The calculating method and equation of paralling modulation function curve of nonlineral crystal are applied in this paper, and verified experimeritally. The Half-wave voltage working curve of electron- optical crystal has been plotted. All kinds of modulation function curve and hystereosis loop in different conditions
The calculating method and equation of paralling modulation function curve of nonlineral crystal are applied in this paper, and verified experimeritally. The Half-wave voltage working curve of electron- optical crystal has been plotted. All kinds of modulation function curve and hystereosis loop in different conditions are tested. The result proved that the paralling method of modulation function curve of electron-optical crystal is an effective optical method of making half-wave voltage (Vπ) of nonlineral crystal..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 13, Issue 10, 873 (1993)
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Study on the characteristics of second harmonic in PTR
[in Chinese], and [in Chinese]
In this paper, the frequency characteristics, dependences of second- harmonic amplitude and phase on the sample thickness and the excitation power have been discussed theoretically and experimently. The comparision between fundamental signal and second-harmonic signal also has been presented.
In this paper, the frequency characteristics, dependences of second- harmonic amplitude and phase on the sample thickness and the excitation power have been discussed theoretically and experimently. The comparision between fundamental signal and second-harmonic signal also has been presented..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 13, Issue 10, 878 (1993)
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Optical Devices
The reflectance of X-ray grazing planar mirror and application
[in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], and [in Chinese]
In this paper, we briefly introduce basic principle and the preparation of soft X-ray grazing planar mirror. The calibrating reflectance process are principally described. The scaling results are given. Finally, the planar mirror are used to measure sub-KeV X-ray spectrum of the laser-plasma interection. The spectrum m
In this paper, we briefly introduce basic principle and the preparation of soft X-ray grazing planar mirror. The calibrating reflectance process are principally described. The scaling results are given. Finally, the planar mirror are used to measure sub-KeV X-ray spectrum of the laser-plasma interection. The spectrum measurement precision are improved..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 13, Issue 10, 934 (1993)
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1:1 optics for UV or DUV lithography
[in Chinese], [in Chinese], and [in Chinese]
The design of a new kind of UV or DUV lithography lenses is described in this paper. Compared with other UV or DUV lithography lenses, this lens can meet the needs of higher numerical aperture and full use of its field. Using the ring illumination, this lens can provide a solution for the contradiction of shortening DO
The design of a new kind of UV or DUV lithography lenses is described in this paper. Compared with other UV or DUV lithography lenses, this lens can meet the needs of higher numerical aperture and full use of its field. Using the ring illumination, this lens can provide a solution for the contradiction of shortening DOF while enlarging NA..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 13, Issue 10, 940 (1993)
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Study on dispersion of coupled prisms
[in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], and [in Chinese]
The dispersion of coupled prisms composed of two different materials is analysed theoretically. The modification coupled prisms are proposed to increase the dispersion. Experimental demostration has proved the calculated results.
The dispersion of coupled prisms composed of two different materials is analysed theoretically. The modification coupled prisms are proposed to increase the dispersion. Experimental demostration has proved the calculated results..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 13, Issue 10, 944 (1993)
Get PDF
Quantum Optics
Population of the Λ type three-level atom with an addational Kerr medium
[in Chinese], [in Chinese], and [in Chinese]
In this paper, we have investigated the time evolution of populations of the Λ type three-level atom with an addtional Kerr medium. The influence of the single photon detuning between the field frequency and the atomic transition frequency, and the effect of the Kerr medium on the populations of the atom have been anal
In this paper, we have investigated the time evolution of populations of the Λ type three-level atom with an addtional Kerr medium. The influence of the single photon detuning between the field frequency and the atomic transition frequency, and the effect of the Kerr medium on the populations of the atom have been analysed..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 13, Issue 10, 902 (1993)
Get PDF
Rapid Communications
Real-time intensity imaging for CO
2
laser heterodyne receive
[in Chinese], [in Chinese], [in Chinese], and [in Chinese]
The real-time intensity imaging of a CO2 laser heterodyne receiving system with an acousto-optical modulator is made for a static target in the laboratory. The image displayed by pseudocolor of four color grades is the pix of 128× 98, and the field of view is 7°×5°.
The real-time intensity imaging of a CO2 laser heterodyne receiving system with an acousto-optical modulator is made for a static target in the laboratory. The image displayed by pseudocolor of four color grades is the pix of 128× 98, and the field of view is 7°×5°..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 13, Issue 10, 949 (1993)
Get PDF
The subpixel interpolation accuracy of image spots with array detectors
[in Chinese], and [in Chinese]
Using interpolation technique it is possible to determine the image spots position with subpixel accuracy. After a brief introduction to several common used interpolation algorithms, their algorithm errors are investigated based on a Gaussian image spot model. By correcting the algothm error an even higher accuracy can
Using interpolation technique it is possible to determine the image spots position with subpixel accuracy. After a brief introduction to several common used interpolation algorithms, their algorithm errors are investigated based on a Gaussian image spot model. By correcting the algothm error an even higher accuracy can be achieved. Above analyses are well verified by our experiments..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 13, Issue 10, 952 (1993)
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Microstructure analysis of thin films deposited by ractive ion plating
[in Chinese], [in Chinese], and [in Chinese]
There are distinct differences in microstructure between thin films deposited by reactive evaporation and by reactive ion plating. Cross sections of TiO2 single layer thin films and TiO2/ SiO2 multilayer stacks deposited by reactive ion plating have been investigated by transmission electron microscopy; analyses of TiO
There are distinct differences in microstructure between thin films deposited by reactive evaporation and by reactive ion plating. Cross sections of TiO2 single layer thin films and TiO2/ SiO2 multilayer stacks deposited by reactive ion plating have been investigated by transmission electron microscopy; analyses of TiO2 thin films by Raman spectroscopy and by RBS is prestented in this paper..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 13, Issue 10, 956 (1993)
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[in Chinese]
[in Chinese], [in Chinese], [in Chinese], and [in Chinese]
.
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 13, Issue 10, 960 (1993)
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Spectroscopy
Stimulated diffuse-band radiation produced by two-photon excitation of potassium vapor
[in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], and [in Chinese]
By two-photon pumping covering a wide wavelength region of 720-740 nm in potassium vapor, yellow stimulated diffuse-band radiation corresponding to the transition 23∏g→a3∑u+ of molecular potassium is generated. The excitation mechanism is discussed in detail.
By two-photon pumping covering a wide wavelength region of 720-740 nm in potassium vapor, yellow stimulated diffuse-band radiation corresponding to the transition 23∏g→a3∑u+ of molecular potassium is generated. The excitation mechanism is discussed in detail..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 13, Issue 10, 865 (1993)
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Studies on natuval radiative lifetime in perterbed Rydberg odd parity sequences of Yb I
[in Chinese], [in Chinese], [in Chinese], [in Chinese], and [in Chinese]
Laser-atomic-beam and time resolved laser spectroscopy have been used to measure natural radiative lifetimes of 23 levels in perterbed Rydberg odd parity sequences of Yb with three-step excitation. The influence of several effects on measured lifetime values has been analyzed.
Laser-atomic-beam and time resolved laser spectroscopy have been used to measure natural radiative lifetimes of 23 levels in perterbed Rydberg odd parity sequences of Yb with three-step excitation. The influence of several effects on measured lifetime values has been analyzed..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 13, Issue 10, 869 (1993)
Get PDF
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Holography
Integrated Optics
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Nonlinear Optics
Optical Devices
Quantum Optics
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