2013 Vol. 6, No. 5
2013, 6(5): 617-632.
doi: 10.3788/CO.20130605.0617
Abstract
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Abstract:
The image reconstruction algorithms of tomography are introduced. The characteristics of the various algorithms are compared from the points of view of the forward model simplication and reverse model mapping structure. Studies show that the various ...
The image reconstruction algorithms of tomography are introduced. The characteristics of the various algorithms are compared from the points of view of the forward model simplication and reverse model mapping structure. Studies show that the various ...
2013, 6(5): 633-642.
doi: 10.3788/CO.20130605.0633
Abstract:
The bioimaging technology based on the Surface-enhanced Raman Spectroscopy(SERS) has emerged as a potential alternative due to its narrow bandwidth, weak background interference, high stability of label agent and specificity. Raman imaging technique ...
The bioimaging technology based on the Surface-enhanced Raman Spectroscopy(SERS) has emerged as a potential alternative due to its narrow bandwidth, weak background interference, high stability of label agent and specificity. Raman imaging technique ...
2013, 6(5): 643-651.
doi: 10.3788/CO.20130605.0643
Abstract:
The background of Thirty Meter Telescope(TMT) and its mission that we should take in hand are introdced. The detailed specifications and the preliminary scheme for the M3CA and M3PA in the 3 mirror(M3) system are presented according to the general sp...
The background of Thirty Meter Telescope(TMT) and its mission that we should take in hand are introdced. The detailed specifications and the preliminary scheme for the M3CA and M3PA in the 3 mirror(M3) system are presented according to the general sp...
2013, 6(5): 652-659.
doi: 10.3788/CO.20130605.0652
Abstract:
Parallel confocal measurement technology changes traditional simple scanning into a multi-spot scanning, and it will improve the efficiency of measurement significantly. In this paper, the working principle of confocal measurement technology is intro...
Parallel confocal measurement technology changes traditional simple scanning into a multi-spot scanning, and it will improve the efficiency of measurement significantly. In this paper, the working principle of confocal measurement technology is intro...
2013, 6(5): 660-669.
doi: 10.3788/CO.20130605.0660
Abstract:
Advances in the techniques available for natural radiative lifetime measurement of excited states of free atoms and ions are presented. The disadvantages and advantages of several often-used methods for radiative lifetime measurements of free atoms a...
Advances in the techniques available for natural radiative lifetime measurement of excited states of free atoms and ions are presented. The disadvantages and advantages of several often-used methods for radiative lifetime measurements of free atoms a...
2013, 6(5): 670-680.
doi: 10.3788/CO.20130605.0670
Abstract:
This paper describes the basic process of laser communications and their link types firstly. Then, it focuses on the latest developments of the laser communications in the European Space Agency(ESA), the United States, Germany, Japan, and domestic la...
This paper describes the basic process of laser communications and their link types firstly. Then, it focuses on the latest developments of the laser communications in the European Space Agency(ESA), the United States, Germany, Japan, and domestic la...
2013, 6(5): 681-691.
doi: 10.3788/CO.20130605.0681
Abstract:
The free space optical communication technology based on a cat-eye modulating retro-reflector has great advantages as compared to the classical free space optical communication technology. In this paper, the principle of free space optical communicat...
The free space optical communication technology based on a cat-eye modulating retro-reflector has great advantages as compared to the classical free space optical communication technology. In this paper, the principle of free space optical communicat...
2013, 6(5): 692-700.
doi: 10.3788/CO.20130605.0692
Abstract:
The methods and characteristics of limb viewing are introduced, and the research progress of limb imaging spectrometers is discribed. Then, the technical indexes of limb imaging spectrometers in the developed countries in America and Europe are compa...
The methods and characteristics of limb viewing are introduced, and the research progress of limb imaging spectrometers is discribed. Then, the technical indexes of limb imaging spectrometers in the developed countries in America and Europe are compa...
2013, 6(5): 701-709.
doi: 10.3788/CO.20130605.0701
Abstract:
In order to detect low clouds and heavy fogs during nighttime and twilight, and to achieve three-dimensional imaging of the clouds, the key technologies of shimmer tridimensional imaging were discussed. First, the theory of shimmer tridimensional ima...
In order to detect low clouds and heavy fogs during nighttime and twilight, and to achieve three-dimensional imaging of the clouds, the key technologies of shimmer tridimensional imaging were discussed. First, the theory of shimmer tridimensional ima...
2013, 6(5): 710-716.
doi: 10.3788/CO.20130605.0710
Abstract:
In order to research the effect of holes on the spin electron diffusion, a method of resonant spin amplication called Spin Concentration Grating(SCG) is adopt to observe the process of electron spin diffusion. Transient spin grating and spin concentr...
In order to research the effect of holes on the spin electron diffusion, a method of resonant spin amplication called Spin Concentration Grating(SCG) is adopt to observe the process of electron spin diffusion. Transient spin grating and spin concentr...
2013, 6(5): 717-728.
doi: 10.3788/CO.20130605.0717
Abstract:
Light management is an important factor for high-efficiency crystalline silicon solar cells, which can enhance light absorption to increase a short-circuit current(Jsc). In this contribution, the most common light management methods including antiref...
Light management is an important factor for high-efficiency crystalline silicon solar cells, which can enhance light absorption to increase a short-circuit current(Jsc). In this contribution, the most common light management methods including antiref...
2013, 6(5): 729-735.
doi: 10.3788/CO.20130605.0729
Abstract:
Due to the presence of system noises in second harmonic signals of a laser gas analyzer based on Tunable Diode Laser Absorption Spectroscopy(TDLAS), this paper designs an Finite Impulse Response(FIR) based filtering scheme to realize the online filte...
Due to the presence of system noises in second harmonic signals of a laser gas analyzer based on Tunable Diode Laser Absorption Spectroscopy(TDLAS), this paper designs an Finite Impulse Response(FIR) based filtering scheme to realize the online filte...
2013, 6(5): 736-742.
doi: 10.3788/CO.20130605.0736
Abstract:
To obtain thermal damage characteristics of the HgCdTe crystal irradiated by a CO2 laser, the theoretical model of Hg0.784Cd0.216Te crystal damaged by the high repetition frequency CO2 laser was developed, and then the damage thresholds of Hg0.784Cd0...
To obtain thermal damage characteristics of the HgCdTe crystal irradiated by a CO2 laser, the theoretical model of Hg0.784Cd0.216Te crystal damaged by the high repetition frequency CO2 laser was developed, and then the damage thresholds of Hg0.784Cd0...
2013, 6(5): 743-749.
doi: 10.3788/CO.20130605.0743
Abstract:
The template method and sol-gel technique were used for the preparation of gold nanorod-silica core-shell (GNR@SiO2) nanocomposites. The controllable synthesis, spectroscopic properties, cytotoxicity and cell imaging of these nanocomposites were disc...
The template method and sol-gel technique were used for the preparation of gold nanorod-silica core-shell (GNR@SiO2) nanocomposites. The controllable synthesis, spectroscopic properties, cytotoxicity and cell imaging of these nanocomposites were disc...
2013, 6(5): 750-758.
doi: 10.3788/CO.20130605.0750
Abstract:
According to the feature of a wide coverage space camera, the geometrical relation of scroll imaging was analyzed.The space coordinate transform process from an object point on the earth to the image point in the focal plane was found. Furthermore, t...
According to the feature of a wide coverage space camera, the geometrical relation of scroll imaging was analyzed.The space coordinate transform process from an object point on the earth to the image point in the focal plane was found. Furthermore, t...
2013, 6(5): 759-766.
doi: 10.3788/CO.20130605.0759
Abstract:
This paper introduces a method that uses a Light Emitting Diode(LED) point light source as the camera calibration light. According to the characteristics of the LED point light source, a constant current source is used to provide the necessary curren...
This paper introduces a method that uses a Light Emitting Diode(LED) point light source as the camera calibration light. According to the characteristics of the LED point light source, a constant current source is used to provide the necessary curren...
2013, 6(5): 767-772.
doi: 10.3788/CO.20130605.0767
Abstract:
To solve the image degradation caused by satellite platform vibration and to improve TDI CCD image quality, the range of satellite attitude stabilization and its effect were analyzed. First, the dependence of the satellite platform vibration on the T...
To solve the image degradation caused by satellite platform vibration and to improve TDI CCD image quality, the range of satellite attitude stabilization and its effect were analyzed. First, the dependence of the satellite platform vibration on the T...
2013, 6(5): 773-779.
doi: 10.3788/CO.20130605.0773
Abstract:
The focusing of a mapping camera affects its principal point, which will change the inner orientation elements and affect the mapping accuracy. Therefore, this paper analyzes in detail the effects of three usual focusing methods(lens focusing, plane ...
The focusing of a mapping camera affects its principal point, which will change the inner orientation elements and affect the mapping accuracy. Therefore, this paper analyzes in detail the effects of three usual focusing methods(lens focusing, plane ...
2013, 6(5): 780-787.
doi: 10.3788/CO.20130605.0780
Abstract:
In order to achieve the high-precision, large-size, three-dimensional space and real-time measurement of mechanical components, a monocular vision measurement system with a light pen was established. The new technology, algorithm converting model, th...
In order to achieve the high-precision, large-size, three-dimensional space and real-time measurement of mechanical components, a monocular vision measurement system with a light pen was established. The new technology, algorithm converting model, th...
2013, 6(5): 788-794.
doi: 10.3788/CO.20130605.0788
Abstract:
To satisfy rigid performance specifications of goniometry for a telescope, this paper analyzes the impacts of the mechanical installation eccentric, roundness error and the shafting sloshing on angle measurements by an encoder with a scale tape grati...
To satisfy rigid performance specifications of goniometry for a telescope, this paper analyzes the impacts of the mechanical installation eccentric, roundness error and the shafting sloshing on angle measurements by an encoder with a scale tape grati...
2013, 6(5): 795-802.
doi: 10.3788/CO.20130605.0795
Abstract:
An experiment platform for laser active imaging and target recognition was built combining a laser active image system and the target recognition technology, and the target recognition after laser active imaging was mainly researched. The feature vec...
An experiment platform for laser active imaging and target recognition was built combining a laser active image system and the target recognition technology, and the target recognition after laser active imaging was mainly researched. The feature vec...
