Contents
1989
Volume: 9 Issue 6
17 Article(s)
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Research Article
Holography
A new achromatic image holography
FAN CHENG, and Yu MEIWEN
Based on the relationship between object and image in the holography, variations of image position with both expandings of wavelengbh and reference source are discussed in detail. The idea presented in this papar is that images of whole visible lighb can be overlapped to generate an achromatic image by making use of thBased on the relationship between object and image in the holography, variations of image position with both expandings of wavelengbh and reference source are discussed in detail. The idea presented in this papar is that images of whole visible lighb can be overlapped to generate an achromatic image by making use of the one-dimentional diffused reference beam. The achromatic image rango is defined. Having considered the restriction of the elementary hologram and pupil of the eye to imaging beams, the high-quality achromatic image can be observed..
Acta Optica Sinica
- Publication Date: Jan. 01, 1900
- Vol. 9, Issue 6, 527 (1989)
Optical image subtraction with holographic filting
Xu HAOFIAN, and HUANG HONGXIN
On the basis of two-time filting technique in Fourier optics, a new method for performing optical image subtraction is proposed. A matched holographic filter, a inverse holographic filter of a image and a 8f coherent optical information processing system are used in this scheme. Experiments show that this method is simOn the basis of two-time filting technique in Fourier optics, a new method for performing optical image subtraction is proposed. A matched holographic filter, a inverse holographic filter of a image and a 8f coherent optical information processing system are used in this scheme. Experiments show that this method is simple and feasible..
Acta Optica Sinica
- Publication Date: Jan. 01, 1900
- Vol. 9, Issue 6, 533 (1989)
Optical matrix-vector multiplication using multichannel shadow-casting correlator
HUANG HONGXIN, and LIU LIREN
Based on the shadow-casting correlation of geometrical optics, a new correlation scheme for performing matrix-vector multiplication is proposed. The configuration can be simply regarded as an incoherent multichannel shadow-casting correlator. It is interest that it is capable fully parallel input and output, and its stBased on the shadow-casting correlation of geometrical optics, a new correlation scheme for performing matrix-vector multiplication is proposed. The configuration can be simply regarded as an incoherent multichannel shadow-casting correlator. It is interest that it is capable fully parallel input and output, and its structure can be varied according to the demand. The general configuration form and the physical limitation of the scheme proposed here are discussed. Experiments are given, and show the method is very simply..
Acta Optica Sinica
- Publication Date: Jan. 01, 1900
- Vol. 9, Issue 6, 537 (1989)
Reconstruction of a complex-valued object function
ZHANG YUE, XU YAZHONG, and ZHUANG SONGLIN
To reconstruct a complex-valued object function, a new algorithm has been proposed. Using the given information of the intensity distributions in If, 2f and 3/ planes behind a lens, the amplitude and phase of a unknown object function can be retrieved. The new algorithm is proved to be practical and also can give an exTo reconstruct a complex-valued object function, a new algorithm has been proposed. Using the given information of the intensity distributions in If, 2f and 3/ planes behind a lens, the amplitude and phase of a unknown object function can be retrieved. The new algorithm is proved to be practical and also can give an excellent convergent result..
Acta Optica Sinica
- Publication Date: Jan. 01, 1900
- Vol. 9, Issue 6, 544 (1989)
Instrumentation, Measurement and Metrology
Theoretical simulations of diffraction efficiencies of a pinhole transmission grating spectrometer
LI YAOLIN, BAI WENAN, CHEN SHISHENG, and Xu ZHIZAN
Properties of our newly developed pinhole transmission grating spectrometer are discussed. Simulating and some detailed analysis of diffraction efficiencies of the grating have been carried out. Data of a corresponding experiment have been used to calculate some important struotrue parameters of the trasmission gratingProperties of our newly developed pinhole transmission grating spectrometer are discussed. Simulating and some detailed analysis of diffraction efficiencies of the grating have been carried out. Data of a corresponding experiment have been used to calculate some important struotrue parameters of the trasmission grating..
Acta Optica Sinica
- Publication Date: Jan. 01, 1900
- Vol. 9, Issue 6, 550 (1989)
Integrating sphere radiation calibration system for UV to near IR
JIN ZHONGHAI, XUN YULONG, ZHANG LIMING, and WANG LKYI
This paper describes a calibration equipment, consisting of a 250 cm-diameter integrating sphere radiation source as its calibration source. It has a large radiation aperture (in diameter of 40 cm), high radiation power, high spatial uniformity and wide angle diffusion, with stable output and wide wavelength region of This paper describes a calibration equipment, consisting of a 250 cm-diameter integrating sphere radiation source as its calibration source. It has a large radiation aperture (in diameter of 40 cm), high radiation power, high spatial uniformity and wide angle diffusion, with stable output and wide wavelength region of calibration (0.25 to 2.5 micrometer). The equipment can be used to calibrate optical remote sensors and other optical instruments used for measuring radiation in the near UV, visible, and near IR wavelenth regions..
Acta Optica Sinica
- Publication Date: Jan. 01, 1900
- Vol. 9, Issue 6, 556 (1989)
Nonlinear Optics
Stimulated Raman Scattering between excited states of hydrogen at high gas pressure
Lou QIEONG, Gu HONGPING, and GAO HONGYI
Stimulated Raman scattering between high excited states of hydrogen at high gas pressure pumped by XeCl exoimer laser was observed for the first time. An unstable laser cavity was adopted for improving the beam quality of the pump laser. Conditions for generating these lines were discussed.Stimulated Raman scattering between high excited states of hydrogen at high gas pressure pumped by XeCl exoimer laser was observed for the first time. An unstable laser cavity was adopted for improving the beam quality of the pump laser. Conditions for generating these lines were discussed..
Acta Optica Sinica
- Publication Date: Jan. 01, 1900
- Vol. 9, Issue 6, 481 (1989)
The research of reflected second harmonic generation from metal surface (Ⅱ)
ZHENG WANQUAN, DONG SHUYAN, SUI XIOTU, and ZHANG ZHMING
By detecting the Second Harmonic Generation (SHG) from the metal surfaces of Ag and Al via changing the polarization of incident light, we studied the surface nonlinear polarized source of these metals. It is found the phonomenological parameter "a", that Eudnick and Stern introduced in, to decribed the contrBy detecting the Second Harmonic Generation (SHG) from the metal surfaces of Ag and Al via changing the polarization of incident light, we studied the surface nonlinear polarized source of these metals. It is found the phonomenological parameter "a", that Eudnick and Stern introduced in, to decribed the contribution of the second order surface current perpendicular to the metal surface, should lie between - 2 and - 7 (SH wave length: 0.532 μm). The value is of fairly different from the previous calculated experimentally measured ones. Our results also demonstrate thai the value of “a” changes with the incident angle, and the value of parameter “b”, describing the contribution of the parallel surface second order current of the metal, is experimentally proved, for the first time, to be —1 thatt theoretioal calculation tells ns..
Acta Optica Sinica
- Publication Date: Jan. 01, 1900
- Vol. 9, Issue 6, 487 (1989)
Enhancement of intensity self pulsing oscillation in intracavity second-harmonic generation process
JIN SHAOZHENG, LI JUN, and PISNG KUNCHI
Using the macroscopic nonlinear polarization model, we discussed in detail the dynamic evolution behaviors of opt ioal field in coherent driving intraoavity second-harmonic generation (ISHG). A new instability process of optical field was predicted and based on this result, a proper way to enhance the intensity self-puUsing the macroscopic nonlinear polarization model, we discussed in detail the dynamic evolution behaviors of opt ioal field in coherent driving intraoavity second-harmonic generation (ISHG). A new instability process of optical field was predicted and based on this result, a proper way to enhance the intensity self-pulsing oscillation in this nonlinear process was proposed..
Acta Optica Sinica
- Publication Date: Jan. 01, 1900
- Vol. 9, Issue 6, 493 (1989)
The bistability of the ring cavity laser with a injected signal having a transverse distribution of the TEM10 mode
FAN XIJUN, TIAN SHUFEN, and WANG QINGJI
In this paper we assume that the signal injected into ring cavity laser have a transverse distribution of the TEM10 mode. Using the method of mean field approximation, we obtained the steady state equation and performed linearized stabililty analysis under the one transverse mode resonant condition. The result showed tIn this paper we assume that the signal injected into ring cavity laser have a transverse distribution of the TEM10 mode. Using the method of mean field approximation, we obtained the steady state equation and performed linearized stabililty analysis under the one transverse mode resonant condition. The result showed that for the good cavity case the output of laser with a injected signal having a transverse distribution of the TEM10 mode exhibits a bistability, and this is different from the case discussed by Lugiato at al in which the signal injected into ring oavity laser 15 a plane wave beam and a Gaussian beam (TEMqo mode) respectively..
Acta Optica Sinica
- Publication Date: Jan. 01, 1900
- Vol. 9, Issue 6, 501 (1989)
The nonlinear susceptibility and optical bistability of narrow gap semiconductors
OU FA, ZHAKG XIAODONG, and WU TINGWAN
The two-band model is improved and the nonlinear susceptibility of narrow gap semiconductors are calculated in this paper. Using the susoeptibility obtained, we deal with the optical bistability (OB) of InSb, and figure out the stationary state curve of OB, the relation between critical switching light intensity and frThe two-band model is improved and the nonlinear susceptibility of narrow gap semiconductors are calculated in this paper. Using the susoeptibility obtained, we deal with the optical bistability (OB) of InSb, and figure out the stationary state curve of OB, the relation between critical switching light intensity and frequency of incident light and the transient properties of OB, which are consistent with the experimental results..
Acta Optica Sinica
- Publication Date: Jan. 01, 1900
- Vol. 9, Issue 6, 507 (1989)
Optical spatial coherence degree bistability
DONG XIAOYI, ZHAN JIANZHONG, and SHEN QIUQIN
Optical coherence bistability (transverse optical bistability) arised from the nonlinear modulation of coherence and its experiment arrangement is first reported in this paper. Calculation and theoretic analysis show that many kind of optical bistability can be obtained in different conditions such as γ/ν or ν/v feedbaOptical coherence bistability (transverse optical bistability) arised from the nonlinear modulation of coherence and its experiment arrangement is first reported in this paper. Calculation and theoretic analysis show that many kind of optical bistability can be obtained in different conditions such as γ/ν or ν/v feedback, with orosscoupling between two dimension coherence signal or without coupling. The stable stable state equations, appropriate parameter range and switch conditions in several situation are given. This kind of optioal bistability may be used in picture enco:iingy optioal oalonlation. and quan bfioation of degree of spatial coherence..
Acta Optica Sinica
- Publication Date: Jan. 01, 1900
- Vol. 9, Issue 6, 513 (1989)
Optical Devices
Investigation of optical restoration characteristics of mechanical rotating mirror isolator
ZHOU FENG, DENG XIMING, and HU SHAOYI
An analytical method for the restoration study of a moving optical beam is developed in this paper. The optical restoration characteristics of the high-speed mechanical rotating mirror isolator for high power laser-fusion system is discussed, and its restoration conditions are obtained.An analytical method for the restoration study of a moving optical beam is developed in this paper. The optical restoration characteristics of the high-speed mechanical rotating mirror isolator for high power laser-fusion system is discussed, and its restoration conditions are obtained..
Acta Optica Sinica
- Publication Date: Jan. 01, 1900
- Vol. 9, Issue 6, 568 (1989)
Rapid Communications
Discrete Hankel transform and its application to laser shaping in high efficiency
LI YONGPING, and ZHU JIANG
Discrete zero-order Hankel transorm is developed and applicated to the design of phase units which can uniform optical fields. The results appeared to be more ideal and accurate than the two-dimensional FFT.Discrete zero-order Hankel transorm is developed and applicated to the design of phase units which can uniform optical fields. The results appeared to be more ideal and accurate than the two-dimensional FFT..
Acta Optica Sinica
- Publication Date: Jan. 01, 1900
- Vol. 9, Issue 6, 573 (1989)
Spectroscopy
Lie Groups approach to the rotation-vibration energy levels for a linear triatomic molecule
YI XIZHANG, DING SHILIANG, and DENG CONGHAO
The formula of rotation-vibrational energy levels for a linear triatomio molecule are obtained by using the theory of Lie Groups, when the rotation and vibration arc both considered as the harmonic osoillalors.The formula of rotation-vibrational energy levels for a linear triatomio molecule are obtained by using the theory of Lie Groups, when the rotation and vibration arc both considered as the harmonic osoillalors..
Acta Optica Sinica
- Publication Date: Jan. 01, 1900
- Vol. 9, Issue 6, 521 (1989)
Thin Films
The optical properties of Te-In-Sb recording thin film
WANG HAO, and GAN FUXI
The amorphous Te-In-Sb thin films were prepared by radio frequency sputtering. We investigated the reflectance and the transmittance of different compositions of Te-In-Sb films. The structure and its change were observed by TEM and electron diffraction. The effect of the Te-In-Sb composition on their optical propertiesThe amorphous Te-In-Sb thin films were prepared by radio frequency sputtering. We investigated the reflectance and the transmittance of different compositions of Te-In-Sb films. The structure and its change were observed by TEM and electron diffraction. The effect of the Te-In-Sb composition on their optical properties, such as dielectric constant, absorbation coefficient and optical gap etc. are discussed. As a result, we find that TeselnaiSbsr .film may be a suitable medium for erasable optical disk..
Acta Optica Sinica
- Publication Date: Jan. 01, 1900
- Vol. 9, Issue 6, 562 (1989)
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