Method to obtain absorption spectra from near-field infrared scattering using homodyne detection

Invention Grant

US08646110B1 Method to obtain absorption spectra from near-field infrared scattering using homodyne detection 有权

Title translation: 使用零差检测从近场红外散射获得吸收光谱的方法

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Patent Title: Method to obtain absorption spectra from near-field infrared scattering using homodyne detection
Patent Title (中): 使用零差检测从近场红外散射获得吸收光谱的方法
Application No.: US13835181

Application Date: 2013-03-15
Publication No.: US08646110B1

Publication Date: 2014-02-04
Inventor: Xiaoji Xu , Gilbert C. Walker
Applicant: Xiaoji Xu , Gilbert C. Walker
Agency: Hill & Schumacher
Agent Lynn C. Schumacher
Main IPC: G01N13/16
IPC: G01N13/16 ; G01N21/35 ; G01N21/00 ; G01Q60/24

Method to obtain absorption spectra from near-field infrared scattering using homodyne detection

Abstract:

The present disclosure provides a procedure to obtain the absorption profiles of molecular resonance with ANSOM. The method includes setting a reference field phase to φ=0.5 π relative to the near-field field, and reference amplitude A≧5|αeff|. The requirement on phase precision is found to be

Abstract(Chinese):

本公开提供了获得与ANSOM的分子共振的吸收曲线的程序。该方法包括将参考场相位设置为相对于近场场的phi =0.5π，参考振幅A> = 5 |αeff|。相位精度要求为<0.3 pi。该方法使ANSOM能够以纳米级空间分辨率执行振动光谱。

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