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Acta Optica Sinica
Contents
1984
Volume: 4 Issue 1
18 Article(s)
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 4, Issue 1, 1 (1984)
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Fourier Optics and Signal Processing
The image reconstruction of the mode structure
ZHANG ZEMIN
This paper introduces four tables of reconstruction coefficients of m = 0, 1, 2, and 8 modes, which are obtained by applying the mode structure analysis method. These coefficients are verified to be satisfactory. These tables can be used to simplify and realize easily the reconstruction of two-dimension images with mod
This paper introduces four tables of reconstruction coefficients of m = 0, 1, 2, and 8 modes, which are obtained by applying the mode structure analysis method. These coefficients are verified to be satisfactory. These tables can be used to simplify and realize easily the reconstruction of two-dimension images with mode structures..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 4, Issue 1, 18 (1984)
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Recording and reconstruction of a 2-D color complex object
WANG nenghe, and ZHUANG SONGLIN
In this paper a new technique for recording 2-D color complex object is described. The optical system is actually an achromatic interferometer. A white light source is used for both recording and reconstruction process. A simple experiment result is also presented here.
In this paper a new technique for recording 2-D color complex object is described. The optical system is actually an achromatic interferometer. A white light source is used for both recording and reconstruction process. A simple experiment result is also presented here..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 4, Issue 1, 27 (1984)
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Simulation experiments of a hybrid optical/digital image processing system applicable to stellar speckle interferometry
SHEN MANGZUO, and WANG WBIJIAN
A hybrid optical/digital image processing system applicable to stellar speckle interferometry in order to attain diffraction limited resolution of sky telescope is described. It consists of a coherent optical processor, a miorodensitometer and a microcomputer. Following a brief analysis of the requirements for the data
A hybrid optical/digital image processing system applicable to stellar speckle interferometry in order to attain diffraction limited resolution of sky telescope is described. It consists of a coherent optical processor, a miorodensitometer and a microcomputer. Following a brief analysis of the requirements for the data processing in stellar speckle interferometry, the system configuration and design are presented. Simulation experiments demonstrate the satisfactory performance of the system. Some further developments and potential applications are also discussed..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 4, Issue 1, 33 (1984)
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Instrumentation, Measurement and Metrology
Correction of measured results of an optical particle counter
TAN KUN, and HU HUANLING
Scattering angular function and responsibility of an optical particle counter are calculated by Using Mie scattering theory of spherical particle in this paper. The calculations indicate that when non-absorptive particles are measured, the 60?-scattering device is better than the 90°-scattering one. When absorptiv
Scattering angular function and responsibility of an optical particle counter are calculated by Using Mie scattering theory of spherical particle in this paper. The calculations indicate that when non-absorptive particles are measured, the 60?-scattering device is better than the 90°-scattering one. When absorptive particles are measured the measurement results of both devices are dependent on the refraction of the particles, so that it is possible to generate a considerable error. However, aftor the responsibilities of these devices were calculated, it is possible to correct the measnremont results upon refraction of the particles. This is important for size distribution of the atmosphorio aerosol..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 4, Issue 1, 55 (1984)
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The calculation and design of a plane light source obtained by a prismatic or cylindrical cavity
LI FANG
The calculation and design methods of a uniform plane light source obtained by a prismatic or cylindrical cavity having various cross sections and perfectly diffusing surfaces are proposed from the fundmental principal of light flux interreflection. The accuracy of this method has been justified by experiments which in
The calculation and design methods of a uniform plane light source obtained by a prismatic or cylindrical cavity having various cross sections and perfectly diffusing surfaces are proposed from the fundmental principal of light flux interreflection. The accuracy of this method has been justified by experiments which indicate that truncation errors can be confined to an acceptable level. The illuminance boxes designed and built according to this method have proved their uniformity up to 97%..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 4, Issue 1, 61 (1984)
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Design and experiment of the concave holographic gratings fabricated by computer-generated hologram
FAN XIAN, WANG GUOQUAN, CHENG HUILING, WU MINSHIAN, and JIN GUOFAN
In this paper a new method to fabricate concave holographic gratings is presented in which a computer-generated hologram (GGH) is used as a compensator to modulate one of the collimated beams in the optical system. The priority of this method compared with the traditional one is discussed. The arithmetic expressions fo
In this paper a new method to fabricate concave holographic gratings is presented in which a computer-generated hologram (GGH) is used as a compensator to modulate one of the collimated beams in the optical system. The priority of this method compared with the traditional one is discussed. The arithmetic expressions for designing such a CGH compensator have been derived. Using this compensator, a 600 l/mm concave holographic grating has been fabricated. The optical system and experimental results are also presented..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 4, Issue 1, 68 (1984)
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Lasers and Laser Optics
Kinetics of a two-section TEA CO
2
laser
LOU QIHONG
The kinetic calculation of a two-section TEA CO2 laser was used to analyse the laser output characteristics. When the firing times of two-section is not synchronized, the effects of injection locking on the laser pulse profile axe discussed.
The kinetic calculation of a two-section TEA CO2 laser was used to analyse the laser output characteristics. When the firing times of two-section is not synchronized, the effects of injection locking on the laser pulse profile axe discussed..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 4, Issue 1, 39 (1984)
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Competition effect of polarization in two-mode internal mirror He-Ne lasers
LU KECHENG, BA ENXU, and ZHANG CHUNPIN
Contrary to the earlier reports, the complicate polarization properties of two-mode internal mirror He-Ne lasers have been observed. The phenomena is explained by the anisotropy of the cavity and competition effect of the polarization direction.
Contrary to the earlier reports, the complicate polarization properties of two-mode internal mirror He-Ne lasers have been observed. The phenomena is explained by the anisotropy of the cavity and competition effect of the polarization direction..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 4, Issue 1, 44 (1984)
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Research of some phenomena of the catalytic-circulating UV-TEA CO
2
laser system
ZHUANG DOUNAN, and LING YINGYI
This paper reports and analyses some phenomena of the catalytic-circulating uv-preionization TEA CO2 laser system. The physical-chemical phenomena reported here include the characteristics of discharge, the composition of gas, the probability of spark, the loss of gas, the rate of dissociation, redox and cooling of gas
This paper reports and analyses some phenomena of the catalytic-circulating uv-preionization TEA CO2 laser system. The physical-chemical phenomena reported here include the characteristics of discharge, the composition of gas, the probability of spark, the loss of gas, the rate of dissociation, redox and cooling of gas and so on. Some experimental rules have been obtained and some rate-constants of the reaction process are given..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 4, Issue 1, 50 (1984)
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Physical Optics
The propagating characters of laser beams with wide and narrow frequency bands
WANG GUIYING, CHEN SHISHENG, YU WENYIN, and DENG XIMING
In this paper a numerical coding and experiments to simulate the propagating characters of laser beams with wide and narrow frequency bands are described. By comparing the propagating characters of coherent light with those of partial coherent light, it is demonstrated that the propagating technique of a laser beam wit
In this paper a numerical coding and experiments to simulate the propagating characters of laser beams with wide and narrow frequency bands are described. By comparing the propagating characters of coherent light with those of partial coherent light, it is demonstrated that the propagating technique of a laser beam with wide frequency band is a new way to increase the brightness of high power laser beam..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 4, Issue 1, 1 (1984)
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Mode dispersion properties of the metal claded dielectric waveguides
LI BUIYONG, SHENG YUCHIN, WANG BINGKUI, and ZHANG ZHIMING
One of the characteristic features of the metil claded dielectric waveguides different from the simple dielectric waveguides is that the former can excite guided waves with effective mode index N1 and N<1 modes in the metal claded dielectric waveguides by the frequency scanning ATR method. The experimental results a
One of the characteristic features of the metil claded dielectric waveguides different from the simple dielectric waveguides is that the former can excite guided waves with effective mode index N<1, which has the propagation constant less than the wave-number of the light in vacuum: ?/c. Authors measured directly the dispersion properties for N>1 and N<1 modes in the metal claded dielectric waveguides by the frequency scanning ATR method. The experimental results are in agreement with the theoretical calculations. It is found that the coupling efficiency through the prism coupler to the metal claded dieleotrio waveguide is depending on the thickness of iihe metal coupling layer.The coupling efficiency reaches to the maximum when the thickness of the coupling layer is about 13.0 nm. The iihickness of the coupling layer will influence the mode index of the waveguide owing to the slight changes of the dieleotrio constant of the coupling layer versus its thickness during their evaporation deposition in a vacuum coating system..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 4, Issue 1, 6 (1984)
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Light beam propagation in a gradually spatial-varied refractive index medium
DENG XIMING, and LIN WEIPING
In this paper,we have derived a equation of light beam propagation in a gradually spatial-varied refractive index meduim based on the hydrodynamic model.
In this paper,we have derived a equation of light beam propagation in a gradually spatial-varied refractive index meduim based on the hydrodynamic model..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 4, Issue 1, 11 (1984)
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Rapid Communications
High-efficient X-ray analyzer crystal-meta-nitroaniline
SU GENBO, and HUANG GONGFANG
It s found that the (040) plane of m-NA(C6H6N2O2) crystal exhibits an anomalously high reflective intensity which is about 2~3 times as much as that of commonly used X-ray analyzer-the PET crystal. It is expected that this new crystal is a potential excellent material for X-ray analyzer.
It s found that the (040) plane of m-NA(C6H6N2O2) crystal exhibits an anomalously high reflective intensity which is about 2~3 times as much as that of commonly used X-ray analyzer-the PET crystal. It is expected that this new crystal is a potential excellent material for X-ray analyzer..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 4, Issue 1, 75 (1984)
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The performances of CO2 mixing gas dynamic laser studied by an instantaneous mixing model
YAN HAIXING, and XU JIHUA
Basing on the gradual mixing model, the authors present a simpler instantaneous mixing model, with which quite a number of digital computations for nonequilibrium flow of CO2 mixing gas dynamic laser are carried out. The effects of velocity, temperature, concentration and radiation fields on the laser performances are
Basing on the gradual mixing model, the authors present a simpler instantaneous mixing model, with which quite a number of digital computations for nonequilibrium flow of CO2 mixing gas dynamic laser are carried out. The effects of velocity, temperature, concentration and radiation fields on the laser performances are studied. The variations of laser performances with these important parameters are given..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 4, Issue 1, 79 (1984)
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VUV spectra of HT-6B Tokamak
WEI LEHAN, FU JIKAI, and WANG SHUYA
The VUV emission spectra of HT-6B tokamak from 43.0 to 130.0 nm are photographed. The spectrograph used is model 247 grating incidence spectrograph. More than one hundred spectral lines have been identified. Besides Laman series of hydrogen which is the working gas, almost all lines are those of light impurities, i. e.
The VUV emission spectra of HT-6B tokamak from 43.0 to 130.0 nm are photographed. The spectrograph used is model 247 grating incidence spectrograph. More than one hundred spectral lines have been identified. Besides Laman series of hydrogen which is the working gas, almost all lines are those of light impurities, i. e. oxygen, carbon and nitrogen. The spectral lines of sulfur are found firstly. The reason of exist of sulfur is explained..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 4, Issue 1, 84 (1984)
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The solution of the ray-path differential equation in the axial gradient-index media
QIAO YATIAN
The exact analytical solution of the differential equation of the ray-paths in four axial gradient-index media is given. It has been indicated that the power for the axial gradient-index media plate is zere.
The exact analytical solution of the differential equation of the ray-paths in four axial gradient-index media is given. It has been indicated that the power for the axial gradient-index media plate is zere..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 4, Issue 1, 89 (1984)
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Laser-induced fluorescence of long chain molecular (C
6
H
10
O
5
)
n
ZHAO JIRAN, CHEN SHUQIN, and JIANG MINHUA
The long chain molecule (C6H10O5)n is excited by 1.06?m high power picosecond laser pulse chain. The molecule absorbs two photons, and the peak wavelength of the fluorescence spectrum is at 5600 A. The polarization characteristics of the spectrum and the dependence of luminescence intensity on the excited intensity are
The long chain molecule (C6H10O5)n is excited by 1.06?m high power picosecond laser pulse chain. The molecule absorbs two photons, and the peak wavelength of the fluorescence spectrum is at 5600 A. The polarization characteristics of the spectrum and the dependence of luminescence intensity on the excited intensity are measured..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 4, Issue 1, 93 (1984)
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