Broadband near UV to visible optical activity measurement using self-heterodyned method

Intae Eom, Sung Hyun Ahn, Hanju Rhee, Minhaeng Cho

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

We demonstrate that broadband electronic optical activity can be measured with supercontinuum light pulse generated by a femtosecond pump (800 nm). It is the self-heterodyned detection technique that enables us to selectively measure the real (optical rotatory dispersion, ORD) or imaginary (circular dichroism, CD) part of the chiroptical susceptibility by controlling the incident polarization state. The single-shot-based measurement that is capable of correcting power fluctuations of the continuum light is realized by using a fast CCD detector and a polarizing beam splitter. Particularly, non-differential scheme used does not rely on any polarization-switching components. We anticipate that this broadband CD/ORD spectrometry with intrinsically ultrafast time-resolution will be applied to a variety of ultrafast chiroptical dynamics studies.

Original languageEnglish
Pages (from-to)10017-10028
Number of pages12
JournalOptics Express
Volume19
Issue number10
DOIs
Publication statusPublished - 2011 May 9

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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