D 2015

High sensitive method for optical birefringence measurement

KUNC, Štěpán and Miroslav ŠULC

Basic information

Original name

High sensitive method for optical birefringence measurement

Authors

KUNC, Štěpán and Miroslav ŠULC

Edition

BELLINGHAM, USA, Proceedings of SPIE, p. nestránkováno, 4 pp. 2015

Publisher

SPIE-INT SOC OPTICAL ENGINEERING

Other information

Language

English

Type of outcome

Proceedings paper

Field of Study

Optics, masers and lasers

Country of publisher

United States of America

Confidentiality degree

is not subject to a state or trade secret

Publication form

electronic version available online

References:

Marked to be transferred to RIV

Yes

RIV identification code

RIV/46747885:24510/15:#0001179

Organization

Faculty of Science, Humanities and Education – Technical University of Liberec – Repository

ISBN

978-1-62841-557-5

ISSN

DOI

UT WoS

000349403500023

Keywords in English

MAGNETIC BIREFRINGENCE; OXYGEN; GASES; APPARATUS; NITROGEN
Changed: 10/4/2015 12:00, Štěpán Kunc

Abstract

In the original language

A sensitive method for optical birefringence measurement is presented. To optimize the signal over the noise ratio, the polarization of the laser beam is modulated exceptionally with a high frequency electro-optical modulator. The specially developed optical apparatus exhibits high sensitivity and accuracy, which were checked by measuring the Cotton-Mouton effect in nitrogen as a function of the pressure. It is able to measure the retardance down to 2x10(-4) rad. This apparatus will be used with the locked optical cavity. The optical cavity will serve as an optical path multiplier for increasing the sensitivity. This proposed set-up will be able to measure the Cotton-Mouton effect in helium, where the birefringence effect is Delta n approximate to 2.4x10(-16).