Narrow-bandwidth tunable picosecond pulses in the visible produced by noncollinear optical parametric amplification with a chirped blue pump

Dick T. Co; Jenny V. Lockard; David W. McCamant; Michael R. Wasielewski

doi:10.1364/AO.49.001880

Narrow-bandwidth tunable picosecond pulses in the visible produced by noncollinear optical parametric amplification with a chirped blue pump

Dick T. Co, Jenny V. Lockard, David W. McCamant, Michael R. Wasielewski

Northwestern University

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

Narrow-bandwidth (∼27 cm ^-1) tunable picosecond pulses from 480nm-780nm were generated from the output of a 1kHz femtosecond titanium:sapphire laser system using a type I noncollinear optical parametric amplifier (NOPA) with chirped second-harmonic generation (SHG) pumping. Unlike a femtosecond NOPA, this system utilizes a broadband pump beam, the chirped 400nm SHG of the Ti:sapphire fundamental, to amplify a monochromatic signal beam (spectrally-filtered output of a type II collinear OPA). Optimum geometric conditions for simultaneous phase-and group-velocity matching were calculated in the visible spectrum. This design is an efficient and simple method for generating tunable visible picosecond pulses that are synchronized to the femtosecond pulses.

Original language	English
Pages (from-to)	1880-1885
Number of pages	6
Journal	Applied Optics
Volume	49
Issue number	10
DOIs	https://doi.org/10.1364/AO.49.001880
Publication status	Published - Apr 1 2010

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Engineering (miscellaneous)
Electrical and Electronic Engineering

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title = "Narrow-bandwidth tunable picosecond pulses in the visible produced by noncollinear optical parametric amplification with a chirped blue pump",

abstract = "Narrow-bandwidth (∼27 cm -1) tunable picosecond pulses from 480nm-780nm were generated from the output of a 1kHz femtosecond titanium:sapphire laser system using a type I noncollinear optical parametric amplifier (NOPA) with chirped second-harmonic generation (SHG) pumping. Unlike a femtosecond NOPA, this system utilizes a broadband pump beam, the chirped 400nm SHG of the Ti:sapphire fundamental, to amplify a monochromatic signal beam (spectrally-filtered output of a type II collinear OPA). Optimum geometric conditions for simultaneous phase-and group-velocity matching were calculated in the visible spectrum. This design is an efficient and simple method for generating tunable visible picosecond pulses that are synchronized to the femtosecond pulses.",

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AU - Wasielewski, Michael R.

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AB - Narrow-bandwidth (∼27 cm -1) tunable picosecond pulses from 480nm-780nm were generated from the output of a 1kHz femtosecond titanium:sapphire laser system using a type I noncollinear optical parametric amplifier (NOPA) with chirped second-harmonic generation (SHG) pumping. Unlike a femtosecond NOPA, this system utilizes a broadband pump beam, the chirped 400nm SHG of the Ti:sapphire fundamental, to amplify a monochromatic signal beam (spectrally-filtered output of a type II collinear OPA). Optimum geometric conditions for simultaneous phase-and group-velocity matching were calculated in the visible spectrum. This design is an efficient and simple method for generating tunable visible picosecond pulses that are synchronized to the femtosecond pulses.

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