Title :
Generation of 312 nm, femtosecond pulses using a poled copolymer film
Author :
Yankelevich, Diego R. ; Dienes, Andrew ; Knoesen, Andre ; Schoenlein, Robert W. ; Shank, Charles V.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., California Univ., Davis, CA, USA
fDate :
10/1/1992 12:00:00 AM
Abstract :
A 2.5-μm-thick corona-poled copolymer film was used to double ~13-fs-long, 50-nJ-energy, 625-nm-wavelength pulses at a 8-kHz repetition rate. The large effective d coefficient results in a relatively high conversion efficiency for such a thin film. A maximum efficiency of 0.13% has been measured. Long-term stable operation was obtained with efficiencies of 0.025% at the damage threshold of ~160 GW/cm2. The damage threshold is remarkably high for organic materials and was found to be peak intensity rather than average intensity dependent
Keywords :
high-speed optical techniques; optical harmonic generation; optical polymers; polymer blends; polymer films; 0.025 to 0.13 percent; 13 fs; 2.5 micron; 312 nm; 50 nJ; 625 nm; P(MMA-CMA)-11; SHG; conversion efficiency; corona-poled copolymer film; coumaromethacrylate copolymer; damage threshold; femtosecond pulses; intensity dependence; long term stable operation; organic materials; repetition rate; Absorption; Corona; Frequency conversion; Optical pulse generation; Organic materials; Polymer films; Pulse generation; Pulse measurements; Transistors; Wavelength measurement;
Journal_Title :
Quantum Electronics, IEEE Journal of
