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Title: Optical quantification of interfacial charge states

Abstract

An apparatus for probing an interface via second harmonic generation (SHG) spectroscopy is provided. The apparatus comprises a sample cell comprising a noncentrosymmetric material having a selected orientation angle with respect to a reference axis; optics configured to illuminate an interface formed between the noncentrosymmetric material and a different material, or formed between two different materials and disposed over the noncentrosymmetric material, with light having a frequency ω under conditions to generate a second harmonic generation (SHG) signal having frequency 2ω; a detector configured to detect the SHG signal, the SHG signal comprising a bulk second harmonic signal from the noncentrosymmetric material and an interfacial second harmonic signal from the interface; and a device comprising a processor and a computer-readable medium operably coupled to the processor, the computer-readable medium having computer-readable instructions stored thereon that, when executed by the processor, cause the apparatus to: illuminate the interface to generate the SHG signal and detect the SHG signal.

Inventors:
; ; ;
Issue Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1600426
Patent Number(s):
10514585
Application Number:
16/299,383
Assignee:
Northwestern University (Evanston, IL); Battelle Memorial Institute (Columbus, OH); The Trustees of Columbia University in the City of New York (Staten Island, NY)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G - PHYSICS G02 - OPTICS G02F - DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING
DOE Contract Number:  
AC05-76RL01830; CHE1057483; CHE1464916
Resource Type:
Patent
Resource Relation:
Patent File Date: 03/12/2019
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS

Citation Formats

Geiger, Franz M., Ohno, Paul E., Wang, Hong-fei, and Eisenthal, Kenneth B. Optical quantification of interfacial charge states. United States: N. p., 2019. Web.
Geiger, Franz M., Ohno, Paul E., Wang, Hong-fei, & Eisenthal, Kenneth B. Optical quantification of interfacial charge states. United States.
Geiger, Franz M., Ohno, Paul E., Wang, Hong-fei, and Eisenthal, Kenneth B. Tue . "Optical quantification of interfacial charge states". United States. https://www.osti.gov/servlets/purl/1600426.
@article{osti_1600426,
title = {Optical quantification of interfacial charge states},
author = {Geiger, Franz M. and Ohno, Paul E. and Wang, Hong-fei and Eisenthal, Kenneth B.},
abstractNote = {An apparatus for probing an interface via second harmonic generation (SHG) spectroscopy is provided. The apparatus comprises a sample cell comprising a noncentrosymmetric material having a selected orientation angle with respect to a reference axis; optics configured to illuminate an interface formed between the noncentrosymmetric material and a different material, or formed between two different materials and disposed over the noncentrosymmetric material, with light having a frequency ω under conditions to generate a second harmonic generation (SHG) signal having frequency 2ω; a detector configured to detect the SHG signal, the SHG signal comprising a bulk second harmonic signal from the noncentrosymmetric material and an interfacial second harmonic signal from the interface; and a device comprising a processor and a computer-readable medium operably coupled to the processor, the computer-readable medium having computer-readable instructions stored thereon that, when executed by the processor, cause the apparatus to: illuminate the interface to generate the SHG signal and detect the SHG signal.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {12}
}

Patent:

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