Waveguide grating and grating spectrometer with adjustable measuring range
The technology of grating spectrometer and waveguide grating is applied in the field of grating spectrometer, which can solve the problems of inability to realize large-scale promotion, complicated design, high price, etc., and achieve the effects of being suitable for mass production, simple in structure and low in cost.
Pending Publication Date: 2021-12-24
上海交通大学烟台信息技术研究院
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, the design of these products is complicated at present, and the price is relatively high. The cheapest one also costs 299 US dollars, which cannot be promoted on a large scale.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0031] The following describes the embodiments of the present application with reference to the accompanying drawings to make the technical content clearer and easier to understand. The present application can be embodied in many different forms of embodiments, and the protection scope of the present application is not limited to the embodiments mentioned herein.
[0032] Such as figure 1 Shown is an embodiment of a waveguide grating provided by the present application. Including waveguide 2 and grating 1. A periodic structure 11 is arranged on the surface of the grating 1, and the waveguide 2 is arranged on the surface of the grating 1 with the periodic structure. Preferably, the grating 1 is coated with an aluminum metal layer on a titanium oxide substrate. The waveguide 2 is made of a material transparent to the light of the working wavelength, such as silicon dioxide, PET, and the like.
[0033] The waveguide 2 has an upper surface 7 and a side surface 3, and the side ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| height | aaaaa | aaaaa |
| refractive index | aaaaa | aaaaa |
Login to View More
Abstract
The invention provides a waveguide grating, which comprises a waveguide and a grating, and is characterized in that the waveguide and the grating are connected at a periodic structure of the grating, and the waveguide is configured to simultaneously generate free space diffraction light and waveguide mode light after incident light is reflected by the grating. The invention further provides a grating spectrometer comprising the waveguide grating, which realizes the function of adjusting a measuring range by arranging a plurality of the waveguide gratings on a tray. Through the arrangement of a waveguide emergent surface and the arrangement of a reflector, the optical path of the reflected light is increased, so that the light with different wavelength components is fully separated in space, the measurement sensitivity is improved, the structure is simple, the cost is low, and large-scale production is facilitated.
Description
technical field [0001] The present application relates to the field of analytical instruments and equipment, in particular to a waveguide grating and a grating spectrometer with adjustable measuring range. Background technique [0002] A grating spectrometer is a well-established industrial device that precisely separates the different wavelength components of an input spectrum and measures the power content therein for the different wavelengths. The high-precision spectral information generated by the analysis can be used as the input of subsequent analysis tools, and the emission spectrum, reflection spectrum, and absorption spectrum information of the input light source or reflected light source can be obtained from the spectral information, which can be used as an important tool for light source performance analysis and material composition analysis. in accordance with. [0003] With the current people's requirements for high efficiency, miniaturization and integration ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/124G01J3/18G01J3/28
CPCG02B6/124G01J3/18G01J3/28
Inventor 赵浩辰佘轶叶志成
Owner 上海交通大学烟台信息技术研究院