Quartz transmission polarization beam splitting grating for rectangular groove
A technology of polarization beam splitting and rectangular slots, applied in the direction of diffraction gratings, optics, optical elements, etc., can solve the problem of low diffraction efficiency of TE waves
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0029] The present invention will be further described below in conjunction with the embodiments and accompanying drawings, but the protection scope of the present invention should not be limited thereby.
[0030] The basis of the present invention is as follows:
[0031] figure 1 It is a schematic diagram of the geometric structure of the rectangular groove quartz transmission polarization beam splitting grating of the present invention. Regions 1 and 2 are both homogeneous and are air (refractive index n 1 =1.0) and fused silica (refractive index n 2 =1.45), the shaded part is the porous silicon dioxide anti-reflection coating, and the refractive index can vary within the range of 1.22-1.29; p is the actual period of the grating, and d is the etching depth of the grating. The incident surface is perpendicular to the groove line of the grating, and a light wave is incident at the Littrow angle, that is, θ inc = sin -1 (λ 0 / 2n 1 p). Limit the period of the grating so ...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com