Related Experiment Video
Updated: Jul 15, 2026
Implementation of a Coherent Anti-Stokes Raman Scattering (CARS) System on a Ti:Sapphire and OPO Laser Based Standard Laser Scanning Microscope
Published on: July 17, 2016
Quasi-Fourier-transform limited, scannable, high energy titanium-sapphire laser source for high resolution
Patrick Dupré1, Terry A Miller
1Laser Spectroscopy Facility, Department of Chemistry, The Ohio State University, 100 West 18th Avenue, Columbus, OH 43210, USA. pdupre@chemistry.ohio-state.edu
Abstract:
A tunable injection seeded Ti:sapphire laser source has been developed and tested. Slave-master tandem cavity and ramp-lock-and-fire concepts have been implemented and fully controlled by a digital signal processor. A Fourier-transform-based analysis, as well as direct measurements, have demonstrated spectral linewidths in the range of 3.5-15 MHz (HWHM), with potential tunability over the entire Ti:sapphire lasing range. A quasi-Fourier-transform limited spectral linewidth is demonstrated assuming a secant hyperbolic shape of the electromagnetic field. Output energies >100 mJ have been reached with approximately 300 mJ of pump energy. The highest spectral purity is obtained using the quadruple pumping scheme.
