Time-domain measurement of optical activity by an ultrastable common-path interferometer

Preda, Fabrizio; Perri, Antonio; Réhault, Julien Emile; Dutta, Biplab; Helbing, Jan; Cerullo, Giulio; Polli, Dario (2018). Time-domain measurement of optical activity by an ultrastable common-path interferometer. Optics letters, 43(8), pp. 1882-1885. Optical Society of America 10.1364/OL.43.001882

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We introduce a novel configuration for the broadband mea-surement of the optical activity of molecules, combiningtime-domain detection with heterodyne amplification. A birefringent common-path polarization-division interferometer creates two phase-locked replicas of the input lightwith orthogonal polarization. The more intense replica interacts with the sample, producing a chiral free-inductiondecay field, which interferes with the other replica, acting as a time-delayed phase-coherent local oscillator. By recording the delay-dependent interferogram, we obtain by a Fourier transform both the circular dichroism and circular birefringence spectra. Our compact, low-cost setup accepts ultrashort light pulses, making it suitable for measurement of transient optical activity.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Institute of Applied Physics

UniBE Contributor:

Réhault, Julien Emile

Subjects:

600 Technology > 620 Engineering
500 Science > 530 Physics

ISSN:

0146-9592

Publisher:

Optical Society of America

Funders:

[UNSPECIFIED] Institute of Applied Physics, University of Bern, Sidlerstrasse 5, 3012 Bern, Switzerland

Language:

English

Submitter:

Julien Emile Réhault

Date Deposited:

28 May 2019 13:04

Last Modified:

28 Oct 2019 15:55

Publisher DOI:

10.1364/OL.43.001882

BORIS DOI:

10.7892/boris.126394

URI:

https://boris.unibe.ch/id/eprint/126394

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