Focusing effects on blue generation by frequency doubling of femtosecond pulses in KNbO/sub 3/

Author

Sungkyu Yu ; Weiner, A.M.

Author_Institution

Sch. of Electr. Eng. & Comput. Eng., Purdue Univ., West Lafayette, IN, USA

Volume

3

fYear

1999

fDate

Aug. 30 1999-Sept. 3 1999

Firstpage

636

Abstract

We show that the nonlinear or blue-induced IR absorption in KNbO/sub 3/ leads to a significant temperature rise in the femtosecond experiments, which must be accounted for in setting the phase-matching conditions. We investigate, for the first time to our knowledge, the focusing dependence of the phase-matching temperature. We find that the optimum phase-matching temperature significantly depends not only on the input power but also on the focusing.

Keywords

optical focusing; optical harmonic generation; optical materials; optical phase matching; optical pulse generation; potassium compounds; KNbO/sub 3/; blue generation; blue-induced IR absorption; femtosecond experiments; femtosecond pulses; focusing; focusing effects; frequency doubling; input power; optimum phase-matching; phase-matching conditions; phase-matching temperature; temperature rise; Electromagnetic wave absorption; Frequency conversion; Optical computing; Optical frequency conversion; Optical harmonic generation; Optical pulse generation; Optical pulses; Pulse generation; Temperature dependence; Ultrafast optics;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics, 1999. CLEO/Pacific Rim '99. The Pacific Rim Conference on

Conference_Location

Seoul, South Korea

Print_ISBN

0-7803-5661-6

Type

conf

DOI

10.1109/CLEOPR.1999.817757

Filename

817757