Band-edge refractive optical nonlinearities in molecular beam-grown ZnSe epilayers

J. A. Bolger; I. Galbraith; A. K. Kar; J. Simpson; S. Y. Wang; K. A. Prior; B. C. Cavenett; B. S. Wherrett

doi:10.1063/1.109935

Band-edge refractive optical nonlinearities in molecular beam-grown ZnSe epilayers

J. A. Bolger, I. Galbraith, A. K. Kar, J. Simpson, S. Y. Wang, K. A. Prior, B. C. Cavenett, B. S. Wherrett

School of Engineering & Physical Sciences

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

9 Citations (Scopus)

Abstract

We report novel measurements of the room temperature refractive optical nonlinearities in a molecular beam epitaxy-grown ZnSe epilayer at frequencies near to the band edge. Time-resolved changes in the transmission spectrum due to a two-photon generated plasma of free carriers are monitored with a broad-band white-light continuum probe. The refractive index changes, measured for photon energies between 0.8 and 0.05 eV below the free-exciton line at 2.68 eV, with photoexcited carrier densities of (2-5)×10¹⁸ cm^-3, are found to be in good agreement with a many-body plasma calculation.

Original language	English
Pages (from-to)	709-711
Number of pages	3
Journal	Applied Physics Letters
Volume	63
Issue number	6
DOIs	https://doi.org/10.1063/1.109935
Publication status	Published - 1993

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title = "Band-edge refractive optical nonlinearities in molecular beam-grown ZnSe epilayers",

abstract = "We report novel measurements of the room temperature refractive optical nonlinearities in a molecular beam epitaxy-grown ZnSe epilayer at frequencies near to the band edge. Time-resolved changes in the transmission spectrum due to a two-photon generated plasma of free carriers are monitored with a broad-band white-light continuum probe. The refractive index changes, measured for photon energies between 0.8 and 0.05 eV below the free-exciton line at 2.68 eV, with photoexcited carrier densities of (2-5)×1018 cm-3, are found to be in good agreement with a many-body plasma calculation.",

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T1 - Band-edge refractive optical nonlinearities in molecular beam-grown ZnSe epilayers

AU - Bolger, J. A.

AU - Galbraith, I.

AU - Kar, A. K.

AU - Simpson, J.

AU - Wang, S. Y.

AU - Prior, K. A.

AU - Cavenett, B. C.

AU - Wherrett, B. S.

PY - 1993

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AB - We report novel measurements of the room temperature refractive optical nonlinearities in a molecular beam epitaxy-grown ZnSe epilayer at frequencies near to the band edge. Time-resolved changes in the transmission spectrum due to a two-photon generated plasma of free carriers are monitored with a broad-band white-light continuum probe. The refractive index changes, measured for photon energies between 0.8 and 0.05 eV below the free-exciton line at 2.68 eV, with photoexcited carrier densities of (2-5)×1018 cm-3, are found to be in good agreement with a many-body plasma calculation.

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SP - 709

EP - 711

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 6

ER -

Band-edge refractive optical nonlinearities in molecular beam-grown ZnSe epilayers

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