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Proceedings Paper

Efficient instantaneous optical switching, frequency conversion and simple logic operations on a femtosecond time scale
Author(s): Juergen Reif; Reiner P. Schmid
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Paper Abstract

Interference upon temporal overlap of two ultrashort pulse laser beams (80 - 100 fs) in a wide bandgap material (BaF2) instantaneously creates an index grating via the optical Kerr effect. This grating causes the diffraction both of the generating beams as well as of further incident beams with an overall efficiency of > 23%. Strong third harmonic generation is observed with an efficiency of up to approximately 3% due to an automatic self phase-matching process. The introduction of a third beam leads to a diffraction pattern simulating digital logic gates (e.g. decoder, demultiplexer, AND-and OR-logic), demonstrating the possibility of simple logic operations on a femtosecond time scale

Paper Details

Date Published: 1 August 2003
PDF: 4 pages
Proc. SPIE 4948, 25th International Congress on High-Speed Photography and Photonics, (1 August 2003); doi: 10.1117/12.516816
Show Author Affiliations
Juergen Reif, Brandenburgische Technische Univ. Cottbus (Germany)
Reiner P. Schmid, Brandenburgische Technische Univ. Cottbus (Germany)


Published in SPIE Proceedings Vol. 4948:
25th International Congress on High-Speed Photography and Photonics
Claude Cavailler; Graham P. Haddleton; Manfred Hugenschmidt, Editor(s)

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