Laser Picosecond Pulse Generation and Measurement.
Final scientific rept. 1 Sep 69-29 Feb 72,
QUEEN'S UNIV BELFAST (NORTHERN IRELAND) DEPT OF PURE AND APPLIED PHYSICS
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Detailed studies of ruby laser mode-locking with saturable absorbers were carried out. Oscillation in pure, low order transverse modes has been achieved and improvements in pulse duration and general reproducibility have been obtained by employing DDCI in optical contact with a laser cavity mirror. Anomalous quenching effects of two-photon fluorescence patterns in Rhodamine 6G and DPA have been extensively studies. Transverse mode-locking of the ruby laser has also been observed in a confocal cavity which also produced simultaneous transverse and longitudinal mode-locking. The saturable action of phthalocyanine dyes in the vapour phase has been studied and successful Q-switching of the ruby laser employing phthalocyanine vapour has been accomplished. Author
- Lasers and Masers