Generation of 312 nm, femtosecond pulses using a poled copolymer film

A 2.5- mu m-thick corona-poled copolymer film was used to double approximately 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 b...

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Bibliographic Details
Published in:IEEE journal of quantum electronics 1992-10, Vol.28 (10), p.2398-2403
Main Authors: Yankelevich, D.R., Dienes, A., Knoesen, A., Schoenlein, R.W., Shank, C.V.
Format: Article
Language:English
Subjects:
Absorption
Corona
Frequency conversion
Optical pulse generation
Organic materials
Polymer films
Pulse generation
Pulse measurements
Transistors
Wavelength measurement
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Summary:A 2.5- mu m-thick corona-poled copolymer film was used to double approximately 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 approximately 160 GW/cm/sup 2/. The damage threshold is remarkably high for organic materials and was found to be peak intensity rather than average intensity dependent.< >
ISSN:0018-9197
1558-1713
DOI:10.1109/3.159546