Picosecond-continuum measurements of ultrafast dynamic refractive nonlinearities in a ZnSe interference filter

J. A. Bolger; A. K. Kar; P. Meredith; B. S. Wherrett

Picosecond-continuum measurements of ultrafast dynamic refractive nonlinearities in a ZnSe interference filter

J. A. Bolger
, A. K. Kar
, P. Meredith
, B. S. Wherrett

School of Engineering & Physical Sciences

Research output: Contribution to journal › Article › peer-review

Abstract

A powerful technique for studying the excitation dynamics of thin-film condensed matter is demonstrated. The field-enhancement within a Fabry-Pérot etalon, and the sensitivity of such a structure to the optical coefficients of the spacer layer material, is combined with the time and spectral resolution afforded by use of time-delayed picosecond-continuum monitoring. Applied to ZnSe interference-filter material the optoelectronic refractive nonlinearity is identified, however rapid lattice heating is observed leading to dominance of the optothermal nonlinearity (of opposite sign) within 3 ps after photoexcitation. © 1994.

Original language	English
Pages (from-to)	111-115
Number of pages	5
Journal	Optics Communications
Volume	111
Issue number	1-2
Publication status	Published - 15 Sept 1994

Cite this

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title = "Picosecond-continuum measurements of ultrafast dynamic refractive nonlinearities in a ZnSe interference filter",

abstract = "A powerful technique for studying the excitation dynamics of thin-film condensed matter is demonstrated. The field-enhancement within a Fabry-P{\'e}rot etalon, and the sensitivity of such a structure to the optical coefficients of the spacer layer material, is combined with the time and spectral resolution afforded by use of time-delayed picosecond-continuum monitoring. Applied to ZnSe interference-filter material the optoelectronic refractive nonlinearity is identified, however rapid lattice heating is observed leading to dominance of the optothermal nonlinearity (of opposite sign) within 3 ps after photoexcitation. {\textcopyright} 1994.",

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AU - Bolger, J. A.

AU - Kar, A. K.

AU - Meredith, P.

AU - Wherrett, B. S.

PY - 1994/9/15

Y1 - 1994/9/15

N2 - A powerful technique for studying the excitation dynamics of thin-film condensed matter is demonstrated. The field-enhancement within a Fabry-Pérot etalon, and the sensitivity of such a structure to the optical coefficients of the spacer layer material, is combined with the time and spectral resolution afforded by use of time-delayed picosecond-continuum monitoring. Applied to ZnSe interference-filter material the optoelectronic refractive nonlinearity is identified, however rapid lattice heating is observed leading to dominance of the optothermal nonlinearity (of opposite sign) within 3 ps after photoexcitation. © 1994.

AB - A powerful technique for studying the excitation dynamics of thin-film condensed matter is demonstrated. The field-enhancement within a Fabry-Pérot etalon, and the sensitivity of such a structure to the optical coefficients of the spacer layer material, is combined with the time and spectral resolution afforded by use of time-delayed picosecond-continuum monitoring. Applied to ZnSe interference-filter material the optoelectronic refractive nonlinearity is identified, however rapid lattice heating is observed leading to dominance of the optothermal nonlinearity (of opposite sign) within 3 ps after photoexcitation. © 1994.

UR - https://www.scopus.com/pages/publications/0028498938

M3 - Article

SN - 0030-4018

VL - 111

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EP - 115

JO - Optics Communications

JF - Optics Communications

IS - 1-2

ER -

Picosecond-continuum measurements of ultrafast dynamic refractive nonlinearities in a ZnSe interference filter

Abstract

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