One-dimensional photonic crystal double-prism defect dispersion separator

A technology of one-dimensional photonic crystals and double prisms, which is applied in the directions of light guide, optics, instruments, etc., can solve the problems of difficult assembly and adjustment, poor stability, large size and weight of devices, and achieves good plasticity, high spatial resolution, and preparation technology. mature effect
CN102789054AInactive Publication Date: 2012-11-21JIANGSU UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
JIANGSU UNIV
Publication Date
2012-11-21
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a multi-wavelength signal dispersion separation method by using defective one-dimensional photonic crystals and relates to the field of spectral measurement. Based on photonic band gap and defect filter characteristics of the one-dimensional photonic crystals, by introducing double-prism defect layers into perfect one-dimensional photonic crystals to enable the thickness of the double-prism defect layers to be varied continuously, different positions correspond to different defect structures, a one-to-one corresponding relationship is formed between the output spectral lines and input and output positions, a characteristic of frequency separating is realized on multi-wavelength electromagnetic waves and a superfine spectral structure is formed. The one-dimensional photonic crystal double-prism defect dispersion separator has very high spectral resolution and can be used on devices such as wave separators and spectrographs; and at the same time, by adopting a thin film preparation technology, the one-dimensional photonic crystal double-prism defect dispersion separator can be integrated with other devices and the preparation technique is mature.
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Description

technical field

[0001] The invention relates to a one-dimensional photonic crystal dispersion separator, which has frequency separation characteristics for multi-wavelength electromagnetic waves and forms ultra-fine spectral structures. Background technique

[0002] Due to the disadvantages of difficult assembly and adjustment, large device volume and weight, and poor stability, the traditional discrete optical device system can no longer meet the needs of the development of modern information optoelectronic technology. New principles, new concepts, and new structural designs of some devices have been proposed one after another. Such as photonic crystals, micro-resonators, micro-cavity lasers, nano-quantum wire light guides, plasmonic surface waves, etc. In recent years, a large number of studies have shown that photonic crystals have broad application prospects, especially in the fields of optical communication and optical information processing. Photonic crystals can b...

Claims

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