Published December 2015 | Version v1
Journal article

Non-degenerate two photon absorption enhancement for laser dyes by precise lock-in detection

  • 1. Japan Science and Technology Agency, CREST, 5 Sanbancho, Chiyoda-ku, Tokyo, 102-0075 (Japan)
  • 2. Advanced Ultrafast Laser Research Center and Department of Engineering Science, Faculty of Informatics and Engineering, University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo, 182-8585 (Japan)
  • 3. Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS-Université Rennes 1, 35042 Rennes (France)
  • 4. Theoretical Division, Los Alamos National Laboratory, Los Alamos, NM (United States)
  • 5. Center for Nonlinear Studies, Los Alamos National Laboratory, Los Alamos, NM (United States)
  • 6. Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka, 565-0871 (Japan)
  • 7. Department of Electrophysics, National Chiao-Tung University, Hsinchu, 30010, Taiwan (China)

Description

This study demonstrates a measurement system for a non-degenerate two-photon absorption (NDTPA) spectrum. The NDTPA light sources are a white light super continuum beam (WLSC, 500 ∼ 720 nm) and a fundamental beam (798 nm) from a Ti:Sapphire laser. A reliable broadband NDTPA spectrum is acquired in a single-shot detection procedure using a 128-channel lock-in amplifier. The NDTPA spectra for several common laser dyes are measured. Two photon absorption cross section enhancements are found in the experiment and validated by theoretical calculation for all of the chromophores

Additional details

Identifiers

Publishing Information

Journal Title
AIP Advances
Journal Volume
5
Journal Issue
12
Journal Page Range
p. 127138-127138.11
ISSN
2158-3226
CODEN
AAIDBI

Optional Information

Notes
(c) 2015 Author(s)