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Proceedings Paper

Large time-dependent nonlinear phase shift of transparent conducting oxides at epsilon-near-zero (Conference Presentation)
Author(s): Sepehr Benis; Natalia Munera; Eric W. Van Stryland; David J. Hagan

Paper Abstract

Materials with vanishing real part of permittivity, also known as epsilon-near-zero, have emerged as a new paradigm to obtain large optical nonlinearities. In this region, light-matter interaction enhances significantly, which gives rise to an unprecedentedly large nonlinear phase shift. The phase sensitivity enhancement is due to the strong dispersion in this spectral region. We present nonlinear optical measurements via the Beam Deflection technique, to directly measure the spectral dependence of the ultrafast nonlinear phase shift of an Indium Tin Oxide thin film. We present simultaneously cross-phase modulation induced frequency changes that depend on how fast the nonlinear phase changes.

Paper Details

Date Published: 9 March 2020
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Proc. SPIE 11264, Nonlinear Frequency Generation and Conversion: Materials and Devices XIX, 112640N (9 March 2020); doi: 10.1117/12.2546743
Show Author Affiliations
Sepehr Benis, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)
Natalia Munera, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)
Eric W. Van Stryland, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)
David J. Hagan, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)


Published in SPIE Proceedings Vol. 11264:
Nonlinear Frequency Generation and Conversion: Materials and Devices XIX
Peter G. Schunemann; Kenneth L. Schepler, Editor(s)

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