| The spectral combination characteristic of grating and the bi-grating diffraction imaging effect |
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| 作者姓名： | ZHANG WeiPing & HE XiaoRong College of Physics Science and Technology Guangxi University Nanning China |
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| 作者单位： | ZHANG WeiPing & HE XiaoRong College of Physics Science and Technology，Guangxi University，Nanning 530004，China |
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| 基金项目： | 国家自然科学基金;广西自然科学基金 |
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| 摘 要： | This paper reports on a new property of grating, namely spectral combination, and on bi-grating diffraction imaging that is based on spectral combination. The spectral combination characteristic of a grating is the capability of combining multiple light beams of different wavelengths incident from specific angles into a single beam. The bi-grating diffraction imaging is the formation of the image of an object with two gratings: the first grating disperses the multi-color light beams from the object and the second combines the dispersed light beams to form the image. We gave the conditions necessary for obtaining the spectral combination. We also presented the equations that relate the two gratings’ spatial frequencies, diffraction orders and positions necessary for obtaining the bi-grating diffraction imaging.
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| 收稿时间： | 13 April 2006 |
| 修稿时间： | 18 August 2006 |
The spectral combination characteristic of grating and the bi-grating diffraction imaging effect |
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| ZHANG WeiPing & HE XiaoRong College of Physics Science and Technology,Guangxi University,Nanning ,China.The spectral combination characteristic of grating and the bi-grating diffraction imaging effect[J].Science in China(Physics Astronomy),2007,50(1):1-5. |
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| Authors: | Zhang WeiPing He XiaoRong |
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| Institution: | College of Physics Science and Technology,Guangxi University,Nanning 530004,China |
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| Abstract: | This paper reports on a new property of grating,namely spectral combination,and on bi-grating diffraction imaging that is based on spectral combination.The spectral combination characteristic of a grating is the capability of combining multiple light beams of different wavelengths incident from specific angles into a single beam.The bi-grating diffraction imaging is the formation of the image of an object with two gratings:the first grating disperses the multi-color light beams from the object and the second combines the dispersed light beams to form the image.We gave the conditions necessary for obtaining the spectral combination.We also presented the equations that relate the two gratings' spatial frequencies,diffraction orders and positions necessary for obtaining the bi-grating diffraction imaging. |
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| Keywords: | spectral combination bi-grating imaging diffraction imaging |
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