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Acta Optica Sinica
Contents
1981
Volume: 1 Issue 5
15 Article(s)
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 1, Issue 5, 1 (1981)
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Fourier Optics and Signal Processing
A laser diode/HOE pattern recognition system
[in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], and [in Chinese]
A compact and rugged optical correlator is described. It employs a lensloss matched spatial filter that is formed at one wavelength. Correlation is performed with a laser diode at a second wavelength using an imaging lens in a scaling correlator topology.
A compact and rugged optical correlator is described. It employs a lensloss matched spatial filter that is formed at one wavelength. Correlation is performed with a laser diode at a second wavelength using an imaging lens in a scaling correlator topology..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 1, Issue 5, 401 (1981)
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Make up Kinoform by the method of rotation-photograph
[in Chinese], [in Chinese], and [in Chinese]
A method of rotation-photograph was suggested by which the Kinoform with axial rotating symmetry was made up, and experimental results of the spherical Kinoform was presented. The method reduces the noise caused by discrete phase on reconstructing imago. This method can apply to either spherical or aspherical kind of K
A method of rotation-photograph was suggested by which the Kinoform with axial rotating symmetry was made up, and experimental results of the spherical Kinoform was presented. The method reduces the noise caused by discrete phase on reconstructing imago. This method can apply to either spherical or aspherical kind of Kinoform with axial rotating symmetry..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 1, Issue 5, 411 (1981)
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Instrumentation, Measurement and Metrology
Polarization and interference in Michelson interferometer consisted of two corner-prisms
Wo MINGZHEN, WANG NENGHE, and WANG ZHIJIANG
The Jones 2×2 matrix of the corner prisms is found. Various forms of the Michelson interferometer consisted of two corners are discussed. In the case that the beam in one arm passes through the edge of a corner and the beam in another arm does not pass through any edges of another corner, the interferometrio field
The Jones 2×2 matrix of the corner prisms is found. Various forms of the Michelson interferometer consisted of two corners are discussed. In the case that the beam in one arm passes through the edge of a corner and the beam in another arm does not pass through any edges of another corner, the interferometrio field is divided into two parts. The phase difference between these two parts is π/2 and the fringes contrast in the whole field is over 90%..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 1, Issue 5, 415 (1981)
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The Abel transformation of Mach-Zehnder interferogram analysis supersonic encircling flow
DING PEIZHU, and PAN SHOUFU
This paper deals with the Abel transformation of Mach-Zehnder interferogram analysis of supersonic airflow about cylindrical or spherical symmetric projectiles containing shock wave.
This paper deals with the Abel transformation of Mach-Zehnder interferogram analysis of supersonic airflow about cylindrical or spherical symmetric projectiles containing shock wave..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 1, Issue 5, 423 (1981)
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Optical Design and Fabrication
Correction of secondary spectrum with intrinsic chromatic aberration
SHI GUANGHUI
An achromatic lens system may consists of several cemented or separated groups of orown and flint glasses. If there is a value of chromatic aberration in each group, and a certain relationship between the positive or negative sign of chromatic aberration and the selection of glasses, the secondary spectrum of the whole
An achromatic lens system may consists of several cemented or separated groups of orown and flint glasses. If there is a value of chromatic aberration in each group, and a certain relationship between the positive or negative sign of chromatic aberration and the selection of glasses, the secondary spectrum of the whole lens system can be reduced to any small value. According to this principle, two complicated triplets with secondary spectrum corrected, are given as an example. Their focal lengths are 1.5 m, F numbers are 7, and field angles are 15° and 18° respectively. It is entirely common glasses used in one of the lens..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 1, Issue 5, 433 (1981)
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Physical Optics
Dynamic analysis on transmissions of paraxial light beams
DENG XIMING, LIN WEIPING, and FANG HONGLIE
In this paper the transmission of paraxial light beams was analyzed based on the gradient vector potential of electromagnetic field.
In this paper the transmission of paraxial light beams was analyzed based on the gradient vector potential of electromagnetic field..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 1, Issue 5, 385 (1981)
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Optical transfer function in terms of ray matrix elements
FAN DIANTUAN
Starting from the diffraction integration in terms of ray matrix elements, the optical transfer functions have been derived for complicated optical system. They are also represented by the ray matrix elements and have the following generality: All are permitted in the system that there are complex lenslike media with q
Starting from the diffraction integration in terms of ray matrix elements, the optical transfer functions have been derived for complicated optical system. They are also represented by the ray matrix elements and have the following generality: All are permitted in the system that there are complex lenslike media with quadratic index and gain(or loss) and Gaussian aperture (or Gaussian mirror) with Gaussian transmissivity (or reflectivity); the observation plane can be located at any plane; the location of aperture can be arbitrary..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 1, Issue 5, 395 (1981)
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Rapid Communications
Tunable synchronously pumped ultrashort pulsed double-beam lasers
CUI JUNWEN, LI QUN, HUI LINGKAI, and LIU SONGHAO
This paper reports the experimental results about the ultrashort pulses from two tunable dye lasers, which are synchronously pumped by the second harmonic of an active-passive mode-locked Nd: phosphate glass laser.
This paper reports the experimental results about the ultrashort pulses from two tunable dye lasers, which are synchronously pumped by the second harmonic of an active-passive mode-locked Nd: phosphate glass laser..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 1, Issue 5, 441 (1981)
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Study of performance for discharge excited N
+
2
laser
CHEN JIANWEN, FU SHUFEN, and LIU MIAOHONG
The experimental results for N2+ laser are presented. The measured optimum partial pressure of N2+ was 2.4 torr at a total pressure of 2 atm. in He/N2 mixture. Kinetics of formation and quenching are analysed and discussed. The spectra of the N2+ laser at 427.8 nm were determined with the second order spectra of a 2-me
The experimental results for N2+ laser are presented. The measured optimum partial pressure of N2+ was 2.4 torr at a total pressure of 2 atm. in He/N2 mixture. Kinetics of formation and quenching are analysed and discussed. The spectra of the N2+ laser at 427.8 nm were determined with the second order spectra of a 2-meter grating spectrometer. We observed that the 427.8 nm line is a doublet..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 1, Issue 5, 445 (1981)
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A transient acousto-optically mode-locked Nd:YAG laser
LI SHIYING, CHEN SHAOHK, and XIE ZIMING
An acousto-optically mode-locked Nd:YAG laser, prelasered with an electro-optic Q-switch, energy storage amplified, and modulated with an acousto-optic modulator operated at 50 MHz is described. In the case of embedding a dye-cell into the cavity, the mode-locked laser can be operated either actively or passively. The
An acousto-optically mode-locked Nd:YAG laser, prelasered with an electro-optic Q-switch, energy storage amplified, and modulated with an acousto-optic modulator operated at 50 MHz is described. In the case of embedding a dye-cell into the cavity, the mode-locked laser can be operated either actively or passively. The performance of this laser is as follows: the pulse width varying continuously from 20 ps to several ns, energy of a single pulse greater than 0.1 mJ, and the amplitude stability of the pulse train better than 90%..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 1, Issue 5, 451 (1981)
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Model JQY-300 laser holographic interferometer
WANG WENGUI
The model JQY -800 la3er holographic interferometer is an instrument used for uniformity measurement of large size optical glass by means of double-exposure holographic differential interferometry. The measurement accuracy of ±5xl0~7 can be obtained. The characteristics of structure design are as follows: 1. Foame
The model JQY -800 la3er holographic interferometer is an instrument used for uniformity measurement of large size optical glass by means of double-exposure holographic differential interferometry. The measurement accuracy of ±5xl0~7 can be obtained. The characteristics of structure design are as follows: 1. Foamed rubber is used as vibration-proof leading to a simple construction, Hz vibration can be isolated. 2. The optical path difference introduced by work-table deformation under heavy sample is eliminated, using the method of placing the sample holder at the support point. 3. The sample mount consists of three-dimension angle micro-adjust structure instead of common used ''point, line, plane" positioning structure. It is convenient for machining, assembly, and the requirement of accuracy can be met..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 1, Issue 5, 457 (1981)
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The experiments of word-translation with Fourier hologram
LING DEHONG, ZHANG CHENGHUA, and WANG CE
A Fourier hologram with informations in the reference beam can be used as a holographic translator. The analysis is made based on the reciprocity of object beam with reference beam and experimental results are presented in this paper. The effect has been improved through the spatial amplitude modulation.
A Fourier hologram with informations in the reference beam can be used as a holographic translator. The analysis is made based on the reciprocity of object beam with reference beam and experimental results are presented in this paper. The effect has been improved through the spatial amplitude modulation..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 1, Issue 5, 463 (1981)
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Memory limit of point holographic images
SONG WEIGUANG, CHENG ZHONGREN, and LI GE
It is expected that, on the Fourier-transform plane of objective lens, the point holographic image formed by object beam and reference beam is capable of higher memory density of Chinese characters and other foreign letters. Therefore, the memory limit which is related to the relative aperture F of the objective lens,
It is expected that, on the Fourier-transform plane of objective lens, the point holographic image formed by object beam and reference beam is capable of higher memory density of Chinese characters and other foreign letters. Therefore, the memory limit which is related to the relative aperture F of the objective lens, the wavelength of the illustrating light and the number of terms of frequency and spectrum in the image are discussed. And all of these have been identified by our experiments..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 1, Issue 5, 469 (1981)
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Pulsed mode and differential mode zero-setting gratings
ZHU JIBIN, and HU XIN
The description of existing pulsed mode zero-setting gratings in connection with their imperfection in the theory relevant to the locating accuracy is given. And at the same time, a new type of zero-setting gratings, namely, of the differential mode zero-setting gratings is suggested in this paper.
The description of existing pulsed mode zero-setting gratings in connection with their imperfection in the theory relevant to the locating accuracy is given. And at the same time, a new type of zero-setting gratings, namely, of the differential mode zero-setting gratings is suggested in this paper..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 1, Issue 5, 475 (1981)
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Research Article
Fourier Optics and Signal Processing
Instrumentation, Measurement and Metrology
Optical Design and Fabrication
Physical Optics
Rapid Communications