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Title: Multimodal nonlinear optical imaging via evanescent wave excitation

Abstract

A system for multimodal nonlinear optical imaging is provided. Each mode uses a high NA objective to cause total internal reflection excitation at a sample-substrate interface. The system has a femtosecond oscillator to generate pulses used for two beams. The objective receives at least one beam, redirects the received at least one beam through a dielectric substrate to cause the TIR and produces corresponding evanescent waves in a portion of the sample adjacent to the sample-substrate interface, and collects a backward-propagating beam of pulses of responsive light. The portion of the sample illuminated by the evanescent waves emits responsive light. Different modes or combinations of the distinct modalities may be selected to access complementary chemical and structural information for various chemical species near the sample-substrate interface. Each mode may have mode-specific control such as selective beam blocking, power ratios and filtering.

Inventors:
; ;
Issue Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
2222230
Patent Number(s):
11740182
Application Number:
17/726,906
Assignee:
UT-Battelle, LLC (Oak Ridge, TN)
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Patent
Resource Relation:
Patent File Date: 04/22/2022
Country of Publication:
United States
Language:
English

Citation Formats

Doughty, Benjamin L., Ma, Yingzhong, and Premadasa, Uvinduni. Multimodal nonlinear optical imaging via evanescent wave excitation. United States: N. p., 2023. Web.
Doughty, Benjamin L., Ma, Yingzhong, & Premadasa, Uvinduni. Multimodal nonlinear optical imaging via evanescent wave excitation. United States.
Doughty, Benjamin L., Ma, Yingzhong, and Premadasa, Uvinduni. Tue . "Multimodal nonlinear optical imaging via evanescent wave excitation". United States. https://www.osti.gov/servlets/purl/2222230.
@article{osti_2222230,
title = {Multimodal nonlinear optical imaging via evanescent wave excitation},
author = {Doughty, Benjamin L. and Ma, Yingzhong and Premadasa, Uvinduni},
abstractNote = {A system for multimodal nonlinear optical imaging is provided. Each mode uses a high NA objective to cause total internal reflection excitation at a sample-substrate interface. The system has a femtosecond oscillator to generate pulses used for two beams. The objective receives at least one beam, redirects the received at least one beam through a dielectric substrate to cause the TIR and produces corresponding evanescent waves in a portion of the sample adjacent to the sample-substrate interface, and collects a backward-propagating beam of pulses of responsive light. The portion of the sample illuminated by the evanescent waves emits responsive light. Different modes or combinations of the distinct modalities may be selected to access complementary chemical and structural information for various chemical species near the sample-substrate interface. Each mode may have mode-specific control such as selective beam blocking, power ratios and filtering.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2023},
month = {8}
}

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