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Optics Letters

Optics Letters


  • Vol. 22, Iss. 23 — Dec. 1, 1997
  • pp: 1796–1798

High-power picosecond mid-infrared optical parametric amplifier for infrared Raman spectroscopy

John C. Deàk, Lawrence K. Iwaki, and Dana D. Dlott  »View Author Affiliations

Optics Letters, Vol. 22, Issue 23, pp. 1796-1798 (1997)

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A high-power (50-MW), kilohertz, picosecond, mid-IR optical parametric amplifier that is pumped by an amplified Ti:sapphire laser and also produces a fixed-frequency visible pulse is described. Mid-IR pulse energies of 40–55 µJ with 0.6–0.8-ps durations and 35-cm -1 bandwidths are reported in the 3650– 2800-cm -1 range. The combination of picosecond mid-IR and visible pulses is useful for two-color spectroscopies, which require simultaneous time and frequency resolution. To illustrate the above, we present vibrational relaxation data for the polyatomic molecule nitromethane, using time-resolved infrared Raman spectroscopy.

© 1997 Optical Society of America

John C. Deàk, Lawrence K. Iwaki, and Dana D. Dlott, "High-power picosecond mid-infrared optical parametric amplifier for infrared Raman spectroscopy," Opt. Lett. 22, 1796-1798 (1997)

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