Dual-output fs/ps burst-mode laser for megahertz-rate rotational coherent anti-Stokes Raman scattering
Abstract
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.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Oct 23, 2020
- Source ID
- 10.1364/ol.404984
Entities
People
- Erik L. Braun
- Michael E Smyser
- Mikhail N Slipchenko
- Sukesh Roy
- Terrence R Meyer
- Venkat Athmanathan
Organizations
- Air Force Office of Scientific Research
- Air Force Research Laboratory