Femtosecond Infrared Vibration Dynamics Spectrometer for the Study of Supercritical Fluids and Energetic Materials.
Abstract
We developed a solid-state tunable mid-IR femtosecond laser system based on a regeneratively amplified Ti:sapphire oscillator. To obtain the desired mid-IR output, a two stage optical parametric amplifier (OPA) was utilized to create two near-IR colors which were subsequently used to produce the desired mid-IR wavelength via difference frequency generation (DFG) in a LiIO3 crystal. Seeding of the OPA was accomplished using the white light continuum produced by the self phase modulation of a Ti:sapphire laser beam focused down into a flow cell containing ethylene glycol. The system design allows for both temporal (i.e., bandwidth) and frequency tuning, affording the user complete output control
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1996
- Accession Number
- ADA323362
Entities
People
- Michael D. Fayer
Organizations
- Stanford University