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Title: Athermal channeled spectropolarimeter

Abstract

A temperature insensitive (athermal) channeled spectropolarimeter (CSP) is described. The athermal CSP includes a crystal retarder formed of a biaxial crystal. The crystal retarder has three crystal axes, wherein each axis has its own distinct index of refraction. The axes are oriented in a particular manner, causing an amplitude modulating carrier frequency induced by the crystal retarder to be thermally invariant. Accordingly, a calibration beam technique can be used over a relatively wide range of ambient temperatures, with a common calibration data set.

Inventors:
Issue Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1338052
Patent Number(s):
9207123
Application Number:
14/192,543
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01J - MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Feb 27
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Jones, Julia Craven. Athermal channeled spectropolarimeter. United States: N. p., 2015. Web.
Jones, Julia Craven. Athermal channeled spectropolarimeter. United States.
Jones, Julia Craven. Tue . "Athermal channeled spectropolarimeter". United States. https://www.osti.gov/servlets/purl/1338052.
@article{osti_1338052,
title = {Athermal channeled spectropolarimeter},
author = {Jones, Julia Craven},
abstractNote = {A temperature insensitive (athermal) channeled spectropolarimeter (CSP) is described. The athermal CSP includes a crystal retarder formed of a biaxial crystal. The crystal retarder has three crystal axes, wherein each axis has its own distinct index of refraction. The axes are oriented in a particular manner, causing an amplitude modulating carrier frequency induced by the crystal retarder to be thermally invariant. Accordingly, a calibration beam technique can be used over a relatively wide range of ambient temperatures, with a common calibration data set.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2015},
month = {12}
}

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Works referenced in this record:

Thermally insensitive, single-crystal, biaxial electro-optic modulators
journal, January 1995


Spectroscopic polarimetry with a channeled spectrum
journal, January 1999


Infrared hyperspectral imaging polarimeter using birefringent prisms
journal, January 2011


Spectral modulation for full linear polarimetry
journal, January 2009


Snapshot imaging spectropolarimeter
journal, May 2002


Stabilization of a channeled spectropolarimeter by self-calibration
journal, January 2006


Realization of quantitative-grade fieldable snapshot imaging spectropolarimeter
journal, January 2004


Fourier transform channeled spectropolarimetry in the MWIR
journal, January 2007


A Simple Polarimetric System for the Lick Observatory Image-Tube Scanner
journal, June 1974