Resonant enhancement of the near infra-red nonlinear optical susceptibility of organic polymers

H. J. Byrne; R. Macruairi; W. Blau

doi:10.1016/0379-6779(91)91272-C

Resonant enhancement of the near infra-red nonlinear optical susceptibility of organic polymers

H. J. Byrne, R. Macruairi, W. Blau

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

Abstract

An enhancement of the diffraction efficiency of laser induced gratings in poly-4BCMU solutions at 1.064μm of more than an order of magnitude is achieved by simultaneous excitation of the sample with radiation of wavelength 532nm. Time delay measurements show the enhancement process to be ultra fast. Variation of the 532nm intensity shows the enhancement to be unsaturated as is born out by the presence of a two-photon resonance contribution to the effective nonlinear susceptibility at 1.064μm in both the pumped and unpumped case. The maximum achievable enhancement of the nonlinear susceptibility is estimated to be greater than an order of magnitude.

Original language	English
Pages (from-to)	3217-3221
Number of pages	5
Journal	Synthetic Metals
Volume	43
Issue number	1-2
DOIs	https://doi.org/10.1016/0379-6779(91)91272-C
Publication status	Published - 7 Jun 1991
Externally published	Yes

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title = "Resonant enhancement of the near infra-red nonlinear optical susceptibility of organic polymers",

abstract = "An enhancement of the diffraction efficiency of laser induced gratings in poly-4BCMU solutions at 1.064μm of more than an order of magnitude is achieved by simultaneous excitation of the sample with radiation of wavelength 532nm. Time delay measurements show the enhancement process to be ultra fast. Variation of the 532nm intensity shows the enhancement to be unsaturated as is born out by the presence of a two-photon resonance contribution to the effective nonlinear susceptibility at 1.064μm in both the pumped and unpumped case. The maximum achievable enhancement of the nonlinear susceptibility is estimated to be greater than an order of magnitude.",

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year = "1991",

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AU - Byrne, H. J.

AU - Macruairi, R.

AU - Blau, W.

PY - 1991/6/7

Y1 - 1991/6/7

N2 - An enhancement of the diffraction efficiency of laser induced gratings in poly-4BCMU solutions at 1.064μm of more than an order of magnitude is achieved by simultaneous excitation of the sample with radiation of wavelength 532nm. Time delay measurements show the enhancement process to be ultra fast. Variation of the 532nm intensity shows the enhancement to be unsaturated as is born out by the presence of a two-photon resonance contribution to the effective nonlinear susceptibility at 1.064μm in both the pumped and unpumped case. The maximum achievable enhancement of the nonlinear susceptibility is estimated to be greater than an order of magnitude.

AB - An enhancement of the diffraction efficiency of laser induced gratings in poly-4BCMU solutions at 1.064μm of more than an order of magnitude is achieved by simultaneous excitation of the sample with radiation of wavelength 532nm. Time delay measurements show the enhancement process to be ultra fast. Variation of the 532nm intensity shows the enhancement to be unsaturated as is born out by the presence of a two-photon resonance contribution to the effective nonlinear susceptibility at 1.064μm in both the pumped and unpumped case. The maximum achievable enhancement of the nonlinear susceptibility is estimated to be greater than an order of magnitude.

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SP - 3217

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JO - Synthetic Metals

JF - Synthetic Metals

IS - 1-2

ER -

Resonant enhancement of the near infra-red nonlinear optical susceptibility of organic polymers

Abstract

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