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Acta Optica Sinica
Contents
1981
Volume: 1 Issue 4
17 Article(s)
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Research Article
[in Chinese]
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 1, Issue 4, 1 (1981)
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Holography
The holographic information capacity of films in the existence of random phase fluctuations
CHENG LU
The effects due to random geometrical fluctuations of the surface of films and the random fluctuations of the index of refraction of the films are considered in the deduction of the holographic information capacity of films from the point of view of reconstrueted 3-dimensional images in tho previous paper.
The effects due to random geometrical fluctuations of the surface of films and the random fluctuations of the index of refraction of the films are considered in the deduction of the holographic information capacity of films from the point of view of reconstrueted 3-dimensional images in tho previous paper..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 1, Issue 4, 347 (1981)
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Instrumentation, Measurement and Metrology
Degrees of freedom of aberrated images under the illumination of incoherent light
TAO CHUNKAN
The degrees of freedom of imaging will change when an optical system under the illumination of incoherent light suffers from symmetrical and unsymmetrical aberrations. The reason of this change is given and the equations are derived.
The degrees of freedom of imaging will change when an optical system under the illumination of incoherent light suffers from symmetrical and unsymmetrical aberrations. The reason of this change is given and the equations are derived..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 1, Issue 4, 323 (1981)
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A method for controlling of the groove shapes of blaze holographic gratings
ZHU SHAOJI
A detailed program concerning the production of blaze holographic gratings by the help of Fourier synthetic method is suggested. A description of the synthetic groove shapes is given and the comparison with the theoretical value is conducted. The calculation of the phase-shift of light waves under reflection is also gi
A detailed program concerning the production of blaze holographic gratings by the help of Fourier synthetic method is suggested. A description of the synthetic groove shapes is given and the comparison with the theoretical value is conducted. The calculation of the phase-shift of light waves under reflection is also given. An experimental equipment which is simple in construction, convenient in adjustment and high precision in control is put forward..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 1, Issue 4, 331 (1981)
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Lasers and Laser Optics
The six-beam subnanosecond high power Nd:glass laser system
DENG XEMING, YU WENYAN, CHEN SHISHEN, G ZHAO QINGCHUN, LI AHMIHG, and WANG XIAOQIN
This paper reports a six-beam subnanosecond high power Nd:glass laser system used for laser plasma research. The characters of each of the six-beam are following: the output aperture is φ60mm, pulse width (FWHM) is 100 ps, output energy is about 10J, energy of super flourescence is less 1mJ, pre-pulse is of the order o
This paper reports a six-beam subnanosecond high power Nd:glass laser system used for laser plasma research. The characters of each of the six-beam are following: the output aperture is φ60mm, pulse width (FWHM) is 100 ps, output energy is about 10J, energy of super flourescence is less 1mJ, pre-pulse is of the order of μJ, beam divergent angle (H. M.) is 0.5 mrad. Total output power of the six-beam is 0.6TW..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 1, Issue 4, 289 (1981)
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Kinetic simulation of discharge-excited XeF laser
CHEN JIANWEN, and Fu SHUFEN
Computer simulant results of kinetic processes of discharge excited XeF laser are given. The reaction equations involve formation, quenching of the XeF and absorption processes of Xe2+, F-, Boltzman transport equations, the particle and photo rate equations as well as circuit equation are solved together under inductiv
Computer simulant results of kinetic processes of discharge excited XeF laser are given. The reaction equations involve formation, quenching of the XeF and absorption processes of Xe2+, F-, Boltzman transport equations, the particle and photo rate equations as well as circuit equation are solved together under inductive radiative condition. Finally the calculation results are compared with the experimental value..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 1, Issue 4, 299 (1981)
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Analysis on tuning linewidth of the waveguidd laser
WANG MINGCHANG, WANG WUCHENG, and CHENG XINFEN
An intracavity tunable waveguide laser has been developed. Some factors affecting the tuning linewidth wore analyzed. The effect of lineshape truncate were calculated quantitatively. The results of the tuning experiments wore presented.
An intracavity tunable waveguide laser has been developed. Some factors affecting the tuning linewidth wore analyzed. The effect of lineshape truncate were calculated quantitatively. The results of the tuning experiments wore presented..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 1, Issue 4, 305 (1981)
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Opto-galvanic effect observed in branch-selected CO laser
WANG YUMIN, GUI ZHENXING, and ZHANG SHUNYI
In this paper the opto-galvanic effect observed in branch selected CO laser is first reported. The possible microscopic processes are proposed and the application of the effect is predicted.
In this paper the opto-galvanic effect observed in branch selected CO laser is first reported. The possible microscopic processes are proposed and the application of the effect is predicted..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 1, Issue 4, 311 (1981)
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Helium cadmium laser in an axial weak magnetic field
[in Chinese], [in Chinese], and [in Chinese]
It wag observed in an axial weak magnetic field that the polarization behavior of a helium cadmium laser was changed, the main polarization axis was rotated, and the laser output was modulated due to the change of the axial magnetic field, etc. These phenomena are called generalized Hanle effect. The computer calculati
It wag observed in an axial weak magnetic field that the polarization behavior of a helium cadmium laser was changed, the main polarization axis was rotated, and the laser output was modulated due to the change of the axial magnetic field, etc. These phenomena are called generalized Hanle effect. The computer calculation in theory was given in agreement with experiments..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 1, Issue 4, 317 (1981)
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Nonlinear Optics
An electrooptic nonlinear Michelson optical bistable devices
LI CHUNFEI, and JI JIARONG
An electrooptical crystal was inserted in one of the two arms of a Michelson interferometer. The feedback signal was used for phase modulation of the light beam in this arm. Thus the light output intensity, as a result of the interference of two beams, exhibited optical testability. An integrated optical device version
An electrooptical crystal was inserted in one of the two arms of a Michelson interferometer. The feedback signal was used for phase modulation of the light beam in this arm. Thus the light output intensity, as a result of the interference of two beams, exhibited optical testability. An integrated optical device version based on this principle was proposed..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 1, Issue 4, 335 (1981)
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High efficiency and diffraction-limited dye laser beam generated by four-wave mixing
FAN JUNYIN, WU CUNKAI, and WANG ZHIYING
In this paper a way of generating high efficiency and diffraction-limited dye laser beam is proposed. In this dye laser, Rhodamine 6G solution in alcohol is pumped by counterpropagating pumping beams in four-wave mixing. The 5820A laser radiation from second harmonic of the output of a Nd: laser system consisting of a
In this paper a way of generating high efficiency and diffraction-limited dye laser beam is proposed. In this dye laser, Rhodamine 6G solution in alcohol is pumped by counterpropagating pumping beams in four-wave mixing. The 5820A laser radiation from second harmonic of the output of a Nd: laser system consisting of a Q-switched Nd: YA.G oscillator and Nd:glass amplifiers is used as the pumping source. The Rhodamine 6G solution is used as both the active medium of the dye laser and the nonlinear medium for four-wave mixing. The concentration of the Rhodamine 6G solution in alcohol is about 5 x 10~5 mole. Using pumping intensity of about 5xl06 W/cm2,the energy conversion efficiency of the pumping beam to dye laser beam is about 50%, and the beam divergence of the laser output is near diffraction-limited. The good quality of the output beam of the new type dye laser is analysed theoretically..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 1, Issue 4, 341 (1981)
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Physical Optics
Two polarization measurements of single-mode waveguide parameters
JIN FENG, and LI YUSHAN
Two polarization method for measuring single-mode waveguide parameters (thin film refractive index and thickness) was presented, the calculation formulae of single-mode waveguide parameters and the errors in parameter measurements were given, and single-mode glass waveguide parameters were measured. The measurement res
Two polarization method for measuring single-mode waveguide parameters (thin film refractive index and thickness) was presented, the calculation formulae of single-mode waveguide parameters and the errors in parameter measurements were given, and single-mode glass waveguide parameters were measured. The measurement results showed that this method is more simple than multi-wavelength measurements, and the measurement accuracy is approaching to that of multi-mode measurements of waveguide parameters..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 1, Issue 4, 351 (1981)
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The eigen-mode expansions of dyadic Green s functions for dielectric waveguides
FAN JUNQING
For dielectric waveguides of arbitrary profile with step-index and gradient-index, the universal expressions of eigen mode expansions of dyadic Green s functions for dielectric waveguides have been found by using the approach of operator theory. It is shown that the expression of electric-type dyadic Green s function i
For dielectric waveguides of arbitrary profile with step-index and gradient-index, the universal expressions of eigen mode expansions of dyadic Green s functions for dielectric waveguides have been found by using the approach of operator theory. It is shown that the expression of electric-type dyadic Green s function is the sum of an eigen-mode expansion containing nine dyadic components and a singular term. From these expressions the dyadic Green s function for a dielectric waveguide can be obtained if the eigen-mode of the waveguide are given..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 1, Issue 4, 357 (1981)
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Rapid Communications
A collinear CS
2
picosecond optical gating
CHEN SHUGIEN, ZHAO JIRAN, and GAO FUYAN
A collinear arrangement of optical shutter with ultrahigh time-resolution is introduced. An ultrashort pulse of Nd:glass laser is used as an ignition pulse and CS2 liquid as Kerr medium. Correlation time of 15 picoseconds has been measured. We obtain that the full width of half maxium of 1.06μ ignition pulse and 5300A
A collinear arrangement of optical shutter with ultrahigh time-resolution is introduced. An ultrashort pulse of Nd:glass laser is used as an ignition pulse and CS2 liquid as Kerr medium. Correlation time of 15 picoseconds has been measured. We obtain that the full width of half maxium of 1.06μ ignition pulse and 5300A signal pulse are 12 picoseconds and 8 picoseconds respectively..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 1, Issue 4, 365 (1981)
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An approach to the method of vignetting determination
SHA CUNXIAO
In this article a specific lens is taken as example to approach the method of the determination of pupil shape, to stress under certain circumstances the existence of surplus inflection points and its cause using the prevalent cubic interpolating splins recently, and finally to put forward two schemes subjected to test
In this article a specific lens is taken as example to approach the method of the determination of pupil shape, to stress under certain circumstances the existence of surplus inflection points and its cause using the prevalent cubic interpolating splins recently, and finally to put forward two schemes subjected to tests for reference..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 1, Issue 4, 371 (1981)
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Dynamic Fabry - Perot interference effect of parallel plane Ge by intense laser
LI YUANHENG
Experiments show that transmittance of parallel-plane Ge changes quasi-periodically with time under CW CO2 laser radiation. Basing on multi-beam interference theory for parallel-plane and considering influence of laser-induced temperature change on refractivity and thick of Ge, calculated result is consistent with expe
Experiments show that transmittance of parallel-plane Ge changes quasi-periodically with time under CW CO2 laser radiation. Basing on multi-beam interference theory for parallel-plane and considering influence of laser-induced temperature change on refractivity and thick of Ge, calculated result is consistent with experimental data. It indicated that parallel-plane Ge has a dynamic Fabry-Perot interference effect as dependences of refractivity and thick on temperature by high power CW CO2 laser heating..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 1, Issue 4, 377 (1981)
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Nonlinear index in the gain medium
FAN DIANYTTAN
The nonlinear index of refraction induced by stimulated transition of high level populations in the gain medium is investigated. Taking example of active Nd:glass, we have specifically calculated the law of index changing with laser intensity. Several physical effects related with this nonlinearity, as self-defocusing,
The nonlinear index of refraction induced by stimulated transition of high level populations in the gain medium is investigated. Taking example of active Nd:glass, we have specifically calculated the law of index changing with laser intensity. Several physical effects related with this nonlinearity, as self-defocusing, self-modulation, nonlinear aberration, pulse distortion etc. are indicated..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 1, Issue 4, 379 (1981)
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Holography
Instrumentation, Measurement and Metrology
Lasers and Laser Optics
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