An Alternative Fiber-based Method of Supercontinuum Generation for Transient Absorption Spectroscopy

Julie Kho; Julie Kho; Charles A. Rohde; Charles A. Rohde; Charles A. Rohde; Frédérique Vanholsbeeck; Peter W. Boyd; M. Cather Simpson; M. Cather Simpson; M. Cather Simpson

Proceedings of the International Quantum Electronics Conference and Conference on Lasers and Electro-Optics Pacific Rim 2011
(Optica Publishing Group, 2011),
paper C675

An Alternative Fiber-based Method of Supercontinuum Generation for Transient Absorption Spectroscopy

Julie Kho, Charles A. Rohde, Frédérique Vanholsbeeck, Peter W. Boyd, and M. Cather Simpson

Conference on Lasers and Electro-Optics/Pacific Rim 2011

Sydney Australia
28 August–1 September 2011
ISBN: 978-0-9775657-7-1

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Session 5: Symposium 1 - Spectroscopy and Chemical Applications (SCA)

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J. Kho, C. A. Rohde, F. Vanholsbeeck, P. W. Boyd, and M. C. Simpson, "An Alternative Fiber-based Method of Supercontinuum Generation for Transient Absorption Spectroscopy," in Proceedings of the International Quantum Electronics Conference and Conference on Lasers and Electro-Optics Pacific Rim 2011, (Optica Publishing Group, 2011), paper C675.

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Abstract

A novel high power, broad bandwidth (450-1750nm) probe laser has been successfully constructed and characterized for transient absorption spectroscopy. Supercontinuum pulses are generated using a nanosecond pulsed Q-switched Nd:YAG laser (1064nm, 7 ns, 20 Hz) in 15m photonic crystal fibers. High spectral quality and stable output power have been reported using this technique. The supercontinuum saturates at pulse powers of 100μW (5 μJ/pulse; 700 W pulse power).

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