Excitonic optical nonlinearity in PbI2

Teruya Ishihara; Takenari Goto

doi:10.1016/0022-2313(87)90119-0

Excitonic optical nonlinearity in PbI₂

Teruya Ishihara, Takenari Goto

SCI - Physics

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

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Abstract

Optical nonlinearity is studied in PbI₂ evaporated film under pump and probe configuration using two tunable nanosecond pulsed dye lasers. A change of the transmitted probe intensity is observed when the pump frequency is equal to the probe one and is in the exciton region. The spectral shape is dispersive if the probe frequency is off the exciton energy, but is peak-like at the resonance, where the nonlinear absorption coefficient amounts to -2×10⁵ cm/MW which corresponds to a third-order nonlinear susceptability of -1×10^-4 esu. This Rayleigh-type structure is not due to the hole burning effect because it totally disappears when the polarization of the two beams is crossed. It is explained by the oscillation of the exciton population due to the coherent interaction between pump and probe laser beams.

Original language	English
Pages (from-to)	252-254
Number of pages	3
Journal	Journal of Luminescence
Volume	38
Issue number	1-6
DOIs	https://doi.org/10.1016/0022-2313(87)90119-0
Publication status	Published - 1987 Dec 1

ASJC Scopus subject areas

Biophysics
Biochemistry
Chemistry(all)
Atomic and Molecular Physics, and Optics
Condensed Matter Physics

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10.1016/0022-2313(87)90119-0

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title = "Excitonic optical nonlinearity in PbI2",

abstract = "Optical nonlinearity is studied in PbI2 evaporated film under pump and probe configuration using two tunable nanosecond pulsed dye lasers. A change of the transmitted probe intensity is observed when the pump frequency is equal to the probe one and is in the exciton region. The spectral shape is dispersive if the probe frequency is off the exciton energy, but is peak-like at the resonance, where the nonlinear absorption coefficient amounts to -2×105 cm/MW which corresponds to a third-order nonlinear susceptability of -1×10-4 esu. This Rayleigh-type structure is not due to the hole burning effect because it totally disappears when the polarization of the two beams is crossed. It is explained by the oscillation of the exciton population due to the coherent interaction between pump and probe laser beams.",

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doi = "10.1016/0022-2313(87)90119-0",

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T1 - Excitonic optical nonlinearity in PbI2

AU - Ishihara, Teruya

AU - Goto, Takenari

PY - 1987/12/1

Y1 - 1987/12/1

N2 - Optical nonlinearity is studied in PbI2 evaporated film under pump and probe configuration using two tunable nanosecond pulsed dye lasers. A change of the transmitted probe intensity is observed when the pump frequency is equal to the probe one and is in the exciton region. The spectral shape is dispersive if the probe frequency is off the exciton energy, but is peak-like at the resonance, where the nonlinear absorption coefficient amounts to -2×105 cm/MW which corresponds to a third-order nonlinear susceptability of -1×10-4 esu. This Rayleigh-type structure is not due to the hole burning effect because it totally disappears when the polarization of the two beams is crossed. It is explained by the oscillation of the exciton population due to the coherent interaction between pump and probe laser beams.

AB - Optical nonlinearity is studied in PbI2 evaporated film under pump and probe configuration using two tunable nanosecond pulsed dye lasers. A change of the transmitted probe intensity is observed when the pump frequency is equal to the probe one and is in the exciton region. The spectral shape is dispersive if the probe frequency is off the exciton energy, but is peak-like at the resonance, where the nonlinear absorption coefficient amounts to -2×105 cm/MW which corresponds to a third-order nonlinear susceptability of -1×10-4 esu. This Rayleigh-type structure is not due to the hole burning effect because it totally disappears when the polarization of the two beams is crossed. It is explained by the oscillation of the exciton population due to the coherent interaction between pump and probe laser beams.

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JO - Journal of Luminescence

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Excitonic optical nonlinearity in PbI₂

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