Chirped frequency-shifted light pulses from a photonic-crystal fiber for pump-probe nonlinear absorption spectroscopy of molecular aggregates

A. A. Ivanov; D. A. Akimov; P. V. Mezentsev; A. I. Plekhanov; M. V. Alfimov; A. M. Zheltikov

doi:10.1117/12.694284

10 June 2006 Chirped frequency-shifted light pulses from a photonic-crystal fiber for pump-probe nonlinear absorption spectroscopy of molecular aggregates

A. A. Ivanov, D. A. Akimov, P. V. Mezentsev, A. I. Plekhanov, M. V. Alfimov, A. M. Zheltikov

Author Affiliations +

Proceedings Volume 6344, Advanced Laser Technologies 2005; 634413 (2006) https://doi.org/10.1117/12.694284
Event: Advanced Laser Technologies 2005, 2005, Tianjin, China

Abstract

Photonic-crystal fibers provide efficient nonlinear-optical transformations of femtosecond Cr: forsterite laser pulses, delivering linearly chirped frequency-shifted broadband light pulses, optimized for pump-probe nonlinear absorption spectroscopy of molecular aggregates. The blue-shifted output of a photonic-crystal fiber with a spectrum stretching from 530 to 680 nm is used to probe one- and two-exciton bands of thiacarbocyanine J aggregates in a polymer film excited by femtosecond second-harmonic pulses of the Cr: forsterite laser.

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A. A. Ivanov, D. A. Akimov, P. V. Mezentsev, A. I. Plekhanov, M. V. Alfimov, and A. M. Zheltikov "Chirped frequency-shifted light pulses from a photonic-crystal fiber for pump-probe nonlinear absorption spectroscopy of molecular aggregates", Proc. SPIE 6344, Advanced Laser Technologies 2005, 634413 (10 June 2006); https://doi.org/10.1117/12.694284

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