Method and apparatus for evaluating a sample through variable angle Raman spectroscopy

A technique of Raman spectroscopy and Raman scattering spectroscopy, applied to one or more characteristic fields of a sample, which can solve the problems of inefficiency of the system and inability to apply well

Inactive Publication Date: 2014-02-26
AVOLONTE HEALTH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these systems are relatively inefficient; and given the relatively small amount of Raman scattering signal typically available, these systems will not be well suited for some applications

Method used

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  • Method and apparatus for evaluating a sample through variable angle Raman spectroscopy
  • Method and apparatus for evaluating a sample through variable angle Raman spectroscopy
  • Method and apparatus for evaluating a sample through variable angle Raman spectroscopy

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Embodiment Construction

[0013] The following detailed description refers to drawings illustrating various details of examples chosen to illustrate how the invention may be practiced. The following discussion is directed at various examples of the inventive subject matter with reference at least in part to these drawings, and describes the illustrated embodiments in sufficient detail to enable those skilled in the art to practice the invention. In addition to the illustrative examples discussed herein, many other embodiments may be used to practice the inventive subject matter, and numerous structures and alternatives other than those specifically discussed herein may be given without departing from the scope of the inventive subject matter. Operation changes.

[0014] In this specification, reference to "one embodiment" or "an embodiment" or reference to "an example" or "example" means that the referenced feature is included or can be included in at least one embodiment of the invention or example. ...

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Abstract

Described are systems and methods for variable angle Raman spectroscopy, in which electromagnetic radiation will be caused to intersect the sample under investigation at a plurality of angles of incidence, so as to provide Raman scattering spectra at each angle. One example use of measuring such spectra at multiple angles of incidence is to enable evaluation at a plurality of depths within the sample. In many implementations, the range of the angles of incidence will include, and extend to either side, of the critical angle.

Description

technical field [0001] The present invention relates generally to the evaluation of samples by using Raman spectroscopy adapted to direct electromagnetic radiation across the sample at multiple angles, and more particularly to wherein Raman scattered electromagnetic radiation from multiple angles of incidence is used to evaluate the This method of studying one or more properties of a sample. [0002] priority statement [0003] This patent application claims the benefit of priority from US Patent Application No. 13 / 098140, filed April 29, 2011, the entire contents of which are incorporated herein by reference. Background technique [0004] In traditional Raman spectroscopy, a source of electromagnetic radiation, such as a laser, is used to excite the sample under investigation with excitation energy. Upon contact with the sample, the excitation energy will be scattered. The vast majority of light scattered by the sample will be scattered elastically; this light is at a no...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/65
CPCG01N21/65G01N2021/4704
Inventor R·G·梅塞施米特
Owner AVOLONTE HEALTH
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