公开(公告)号：US09778105B2

公开(公告)日：2017-10-03

申请号：US14518588

申请日：2014-10-20

Applicant: WAYNE STATE UNIVERSITY

Inventor： Gregory W. Auner ,  Changhe Huang ,  Christopher M. Thrush ,  Michelle Brusatori

IPC: G01J3/28 ,  G01J3/02 ,  G02B5/18 ,  G01J3/18 ,  G01J3/44 ,  G01J3/453 ,  G01J3/45

CPC classification number: G01J3/021 ,  G01J3/18 ,  G01J3/44 ,  G01J3/4412 ,  G01J3/45 ,  G01J3/4531 ,  G01J3/4532 ,  G02B5/1861

Abstract: An apparatus for performing Raman spectral analysis of a sample is described, comprising a coherent light source, an first optical chain to direct the coherent light to impinge on the sample, a second optical chain to direct the scattered light onto a diffraction grating, and a third optical chain to direct the diffracted light onto detection array. The diffraction grating is a stairstep with a metalized surface, and a plurality of metalized stripes on a flat surface is disposed in a direction orthogonal to the long dimension of the stairsteps. The region between the flat surface and the stairstep is transparent. The zeroth-order fringe is selected by a slit and directed onto camera. The resultant interferogram is Fourier transformed to produce a representation of the Raman spectrum.

公开(公告)号：US20150085284A1

公开(公告)日：2015-03-26

申请号：US14518588

申请日：2014-10-20

Applicant: WAYNE STATE UNIVERSITY

Inventor： Gregory W. Auner ,  Changhe Huang ,  Christopher M. Thrush ,  Michelle Brusatori

IPC: G01J3/02 ,  G01J3/44 ,  G01J3/45

CPC classification number: G01J3/021 ,  G01J3/18 ,  G01J3/44 ,  G01J3/4412 ,  G01J3/45 ,  G01J3/4531 ,  G01J3/4532 ,  G02B5/1861

Abstract: An apparatus for performing Raman spectral analysis of a sample is described, comprising a coherent light source, an first optical chain to direct the coherent light to impinge on the sample, a second optical chain to direct the scattered light onto a diffraction grating, and a third optical chain to direct the diffracted light onto detection array. The diffraction grating is a stairstep with a metalized surface, and a plurality of metalized stripes on a flat surface is disposed in a direction orthogonal to the long dimension of the stairsteps. The region between the flat surface and the stairstep is transparent. The zeroth-order fringe is selected by a slit and directed onto camera. The resultant interferogram is Fourier transformed to produce a representation of the Raman spectrum.

Abstract translation: 描述了一种用于执行样本的拉曼光谱分析的装置，包括相干光源，用于引导相干光照射到样本上的第一光链，将散射光引导到衍射光栅上的第二光链，以及 第三光链以将衍射光引导到检测阵列上。 衍射光栅是具有金属化表面的阶梯，并且平坦表面上的多个金属化条纹沿着与步态的长尺寸正交的方向设置。 平坦表面和阶梯之间的区域是透明的。 零级条纹由狭缝选择并定向到相机上。 所得干涉图被傅立叶变换以产生拉曼光谱的表示。