Fundamental Studies of Electric-Field-Induced Coherent Raman Scattering
Abstract
A rather novel method has been studied, referred to here as electric-field-induced coherent Raman scattering (E-CRS). Two beams of laser pulses of frequencies, whose energy difference matches to the Raman transition, produce an infrared (IR) coherent beam corresponding to the Raman transition energy in the presence of a direct-current (dc) electric field. The IR light may be considered as an anti-Stokes wave generated by the electric fields of two laser beams and a third field at zero frequency, i.e., the dc electric field. The same laser beams also produce conventional coherent anti-Stokes Raman scattering (CARS) regardless of the presence of the dc electric field. The electric field can be extracted by the signal ratio (IR vs. CARS), which depends only on the electric field strength. This method, using nanosecond laser beams, has the potential to be a powerful tool to reveal rich high-speed dynamics in discharge plasmas.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 07, 2011
- Accession Number
- ADA545150
Entities
People
- Tsuyohito Ito
Organizations
- Osaka University