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Proceedings Paper

Phase and group delay control of femtosecond pulses with liquid crystal cells and application to hyperspectral imaging
Author(s): Aurélie Jullien; Umberto Bortolozzo; Stefania Residori; Stéphanie Grabielle; Nicolas Forget; Jean-Pierre Huignard
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Paper Abstract

We present a tunable delay line suitable for femtosecond pulse trains based on cascaded electrically-controlled nematic liquid crystal cells. Simple and collinear implementations enable to shape the achievable temporal range, with sub-femtosecond temporal accuracy, thus disclosing ultrafast applications in nematic liquid crystal-based devices. Independent control of the phase and group delay of femtosecond pulses is demonstrated. Furthermore, we successfully extend the method to Fourier-Transform hyperspectral imaging. The proposed devices are compact, low-cost, with no moving parts, scalable in size and spectral range.

Paper Details

Date Published: 20 February 2017
PDF: 9 pages
Proc. SPIE 10119, Slow Light, Fast Light, and Opto-Atomic Precision Metrology X, 101191B (20 February 2017); doi: 10.1117/12.2261211
Show Author Affiliations
Aurélie Jullien, Institut Non Linéaire de Nice Sophia Antipolis, CNRS (France)
Umberto Bortolozzo, Institut Non Linéaire de Nice Sophia Antipolis, CNRS (France)
Stefania Residori, Institut Non Linéaire de Nice Sophia Antipolis, CNRS (France)
Stéphanie Grabielle, Fastlite (France)
Nicolas Forget, Fastlite (France)
Jean-Pierre Huignard, Jphopto (France)


Published in SPIE Proceedings Vol. 10119:
Slow Light, Fast Light, and Opto-Atomic Precision Metrology X
Selim M. Shahriar; Jacob Scheuer, Editor(s)

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