Dual-output fs/ps burst-mode laser for megahertz-rate rotational coherent anti-Stokes Raman scattering | Zendy

Michael E. Smyser | Zendy; Erik L. Braun | Zendy; Venkat Athmanathan | Zendy; Mikhail N. Slipchenko | Zendy; Sukesh Roy | Zendy; Terrence R. Meyer | Zendy

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Dual-output fs/ps burst-mode laser for megahertz-rate rotational coherent anti-Stokes Raman scattering

Author(s) -

Michael E. Smyser,

Erik L. Braun,

Venkat Athmanathan,

Mikhail N. Slipchenko,

Sukesh Roy,

Terrence R. Meyer

Publication year - 2020

Publication title -

optics letters

Language(s) - Uncategorized

Resource type - Journals

SCImago Journal Rank - 1.524

H-Index - 272

eISSN - 1071-2763

pISSN - 0146-9592

DOI - 10.1364/ol.404984

Subject(s) - optics , raman scattering , femtosecond , laser , burst mode (computing) , picosecond , materials science , mode locking , raman spectroscopy , physics , electrical engineering , engineering

A burst-mode laser system is developed for hybrid femtosecond/picosecond (fs/ps) rotational coherent anti-Stokes Raman scattering (RCARS) at megahertz rates. Using a common fs oscillator, the system simultaneously generates time synchronized 1061 nm, 274 fs and 1064 nm, 15.5 ps pulses with peak powers of 350 MW and 2.5 MW, respectively. The system is demonstrated for two-beam fs/ps RCARS in N 2 at 1 MHz with a signal-to-noise ratio of 176 at room temperature. This repetition rate is an order of magnitude higher than previous CARS using burst-mode ps laser systems and two to three orders of magnitude faster than previous continuously pulsed fs or fs/ps laser systems.

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