2015 Vol. 8, No. 2
2015, 8(2): 169-181.
doi: 10.3788/CO.20150802.0169
Abstract
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Abstract:
Deep-ultraviolet(DUV) is the shortest wavelength of conventional optical techniques. With the wavelength shrinks, DUV optical coatings are confronted with a series of technical problems. As a kind of typical ultra precision optical system, DUV lithog...
Deep-ultraviolet(DUV) is the shortest wavelength of conventional optical techniques. With the wavelength shrinks, DUV optical coatings are confronted with a series of technical problems. As a kind of typical ultra precision optical system, DUV lithog...
2015, 8(2): 182-190.
doi: 10.3788/CO.20150802.0182
Abstract:
High-power picosecond ultraviolet lasers have attracted considerable interests as novel laser source, due to their wide applications in high precision product, laser medical system, optoelectronic countermeasure and structuring of silicon. The resear...
High-power picosecond ultraviolet lasers have attracted considerable interests as novel laser source, due to their wide applications in high precision product, laser medical system, optoelectronic countermeasure and structuring of silicon. The resear...
2015, 8(2): 191-197.
doi: 10.3788/CO.20150802.0191
Abstract:
To realize the motion vector estimation targeted at moving objects in video, the motion estimation system based on transformation domain of multi-dimensional vector matrix is established. The research is then carried out in transformation domain to s...
To realize the motion vector estimation targeted at moving objects in video, the motion estimation system based on transformation domain of multi-dimensional vector matrix is established. The research is then carried out in transformation domain to s...
2015, 8(2): 198-204.
doi: 10.3788/CO.20150802.0198
Abstract:
To improve the effectiveness of remote-sensing image data, a cloud detection method based on the reflectivity of hyperspectral remote image is proposed. According to the characteristic of the reflectivity between different earth background, image dat...
To improve the effectiveness of remote-sensing image data, a cloud detection method based on the reflectivity of hyperspectral remote image is proposed. According to the characteristic of the reflectivity between different earth background, image dat...
2015, 8(2): 205-210.
doi: 10.3788/CO.20150802.0205
Abstract:
This paper proposes that the photon detection efficiency(PDE) of Multi-Pixel Photon Counter(MPPC) can be improved by the optical crosstalk(OC) effect when taking the output amplitude or output charge of the avalanche pulses as the parameter of photon...
This paper proposes that the photon detection efficiency(PDE) of Multi-Pixel Photon Counter(MPPC) can be improved by the optical crosstalk(OC) effect when taking the output amplitude or output charge of the avalanche pulses as the parameter of photon...
2015, 8(2): 211-219.
doi: 10.3788/CO.20150802.0211
Abstract:
According to the detector arrays mosaic imaging system designed with four lenses based on concentric spherical lens, its applied algorithms about the image registration is investigated, such as feature detection and extraction, feature vector matchin...
According to the detector arrays mosaic imaging system designed with four lenses based on concentric spherical lens, its applied algorithms about the image registration is investigated, such as feature detection and extraction, feature vector matchin...
2015, 8(2): 220-226.
doi: 10.3788/CO.20150802.0220
Abstract:
Research on co-aperture designing methods with which the space imaging optical system can be used as laser transmitting antenna is important to alleviate the load of the satellite and to deal with sudden trouble. First, space laser transmitting desig...
Research on co-aperture designing methods with which the space imaging optical system can be used as laser transmitting antenna is important to alleviate the load of the satellite and to deal with sudden trouble. First, space laser transmitting desig...
2015, 8(2): 227-233.
doi: 10.3788/CO.20150802.0227
Abstract:
In this paper, we analyzed the principles of tiling SLMs to enlarge the viewing angle of holographic 3D reconstructions. Based on the idea of tiling multi-SLMs, we designed a holographic 3D display system using planar mirrors, beam splitters and two ...
In this paper, we analyzed the principles of tiling SLMs to enlarge the viewing angle of holographic 3D reconstructions. Based on the idea of tiling multi-SLMs, we designed a holographic 3D display system using planar mirrors, beam splitters and two ...
2015, 8(2): 234-240.
doi: 10.3788/CO.20150802.0234
Abstract:
In order to meet the requirement of compact structure and athermal stability with wide temperature range, a middle infrared catadioptric optical system is designed. According to the requirements of other guided modes, the focal length and aperture of...
In order to meet the requirement of compact structure and athermal stability with wide temperature range, a middle infrared catadioptric optical system is designed. According to the requirements of other guided modes, the focal length and aperture of...
2015, 8(2): 241-247.
doi: 10.3788/CO.20150802.0241
Abstract:
The beamsplitter has a critical role in the interference lithography, which splits one laser beam into two, therefore these two waves can interfere to produce the fringes. The instability of the interference lithography, which is determined by the se...
The beamsplitter has a critical role in the interference lithography, which splits one laser beam into two, therefore these two waves can interfere to produce the fringes. The instability of the interference lithography, which is determined by the se...
2015, 8(2): 248-254.
doi: 10.3788/CO.20150802.0248
Abstract:
In this paper, the traditional optical triangulation model based on phase method is improved, and a new model and calibration method are used which is independent of geometric parameters. The new model requires only calculating phase difference thoro...
In this paper, the traditional optical triangulation model based on phase method is improved, and a new model and calibration method are used which is independent of geometric parameters. The new model requires only calculating phase difference thoro...
2015, 8(2): 255-262.
doi: 10.3788/CO.20150802.0255
Abstract:
Based on the cat-eye effect of photoelectric devices, this paper establishes a system of active laser detection with CCD, and puts forward an effective algorithm for detecting peeping devices. The proposed algorithm acquires one image when the laser ...
Based on the cat-eye effect of photoelectric devices, this paper establishes a system of active laser detection with CCD, and puts forward an effective algorithm for detecting peeping devices. The proposed algorithm acquires one image when the laser ...
2015, 8(2): 263-269.
doi: 10.3788/CO.20150802.0263
Abstract:
In order to improve the static pointing accuracy of level mounting optoelectronic telescope, the static pointing models are presented after theoretical analysis and experimental research, and modified model for level mounting optoelectronic telescope...
In order to improve the static pointing accuracy of level mounting optoelectronic telescope, the static pointing models are presented after theoretical analysis and experimental research, and modified model for level mounting optoelectronic telescope...
2015, 8(2): 270-276.
doi: 10.3788/CO.20150802.0270
Abstract:
In order to fulfill the requirement that optical sampling pulse time jitter is less than 100 femtosecond in the high precision WDM/OTDM optical sampling system, a system using the autocorrelator to measure the time delay is developed. By a fiber coup...
In order to fulfill the requirement that optical sampling pulse time jitter is less than 100 femtosecond in the high precision WDM/OTDM optical sampling system, a system using the autocorrelator to measure the time delay is developed. By a fiber coup...
2015, 8(2): 277-298.
doi: 10.3788/CO.20150802.0277
Abstract:
According to the urgent requirement to the microminiature, lightweight, and staticize on Fourier transform infrared spectrometer in the field of environment, medical treatment, space exploration, meteorology, military and security, a spatial modulati...
According to the urgent requirement to the microminiature, lightweight, and staticize on Fourier transform infrared spectrometer in the field of environment, medical treatment, space exploration, meteorology, military and security, a spatial modulati...
