Abstract

Infrared to visible frequency upconversion with a very high efficiency of 377% and real-time storage of nanosecond pulses for a few tenths of a millisecond have been simultaneously achieved in BDN organic dye solution in toluene. Two novel effects influencing the FWM efficiency are found: (1) transient energy transfer between writing beams; (2) the time matching between reading beam and molecular relaxation time of the medium. Full frequency-domain absorption characteristics and full time-domain storage characteristics of BDN have been studied in detail. The experimental results are in agreement with the theoretical analysis.

© 1983 Optical Society of America