Time-gated imaging through scattering media by using efficient THG in organic films

Gabriel Ramos-Ortiz; Myoungsik Cha; Stephen Barlow; Gregory Walker; Seth R. Marder; Bernard Kippelen

doi:10.1117/12.589419

21 October 2004 Time-gated imaging through scattering media by using efficient THG in organic films

Gabriel Ramos-Ortiz, Myoungsik Cha, Stephen Barlow, Gregory Walker, Seth R. Marder, Bernard Kippelen

Proceedings Volume 5622, 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications; (2004) https://doi.org/10.1117/12.589419
Event: 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications, 2004, Porlamar, Venezuela

Abstract

We report on efficient third-harmonic generation (THG) with large spectral and angular bandwidths in polymer thin films doped with conjugated organic molecules. Using the efficient THG exhibited by these organic films, we demonstrate real-time, time-gated, direct imaging of objects immersed in highly scattering media by using femtosecond pulses tuned at the eye-safe and telecommunication-compatible near-infrared spectral region (1550 nm). By using a low cost detection system we resolved THG time-gated images of objects immersed in media with a scattering attenuation of 14 mean-free paths, equivalent to an attenuation of six optical densities.

Citation Download Citation

Gabriel Ramos-Ortiz, Myoungsik Cha, Stephen Barlow, Gregory Walker, Seth R. Marder, and Bernard Kippelen "Time-gated imaging through scattering media by using efficient THG in organic films", Proc. SPIE 5622, 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications, (21 October 2004); https://doi.org/10.1117/12.589419

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