Recent developments in VUV femtosecond pulse generation: proposal for a higher efficiency F2 (157-nm) laser

James H. Glownia; Dietmar R. Gnass; Peter P. Sorokin

doi:10.1117/12.175856

16 May 1994 Recent developments in VUV femtosecond pulse generation: proposal for a higher efficiency F2 (157-nm) laser

James H. Glownia, Dietmar R. Gnass, Peter P. Sorokin

Proceedings Volume 2116, Generation, Amplification, and Measurement of Ultrashort Laser Pulses; (1994) https://doi.org/10.1117/12.175856
Event: OE/LASE '94, 1994, Los Angeles, CA, United States

Abstract

The efficiency of the four-wave mixing (2 (omega) ₁ - (omega) ₂), VUV femtosecond source described by us last year (SPIE Vol. 1861) inherently relies upon a two-photon resonance enhancement occurring (in Xe gas) when (lambda) ₁ approximately equals 248.5 nm. However, it also depends upon the spatial and temporal coherence properties of the input pulses. Development of a new source for producing beams at (omega) ₁ with greatly improved coherence properties is reported here. Performance of the four-wave mixing source with these (omega) ₁ pulses is described. Femtosecond VUV pulses with energies as high as approximately 60 (mu) J are generated. As a separate topic, we propose the use of a pulsed (nanosecond) infrared laser to deplete the terminal state of an F₂ (157-nm) laser in order to greatly enhance its performance.

Citation Download Citation

James H. Glownia, Dietmar R. Gnass, and Peter P. Sorokin "Recent developments in VUV femtosecond pulse generation: proposal for a higher efficiency F2 (157-nm) laser", Proc. SPIE 2116, Generation, Amplification, and Measurement of Ultrashort Laser Pulses, (16 May 1994); https://doi.org/10.1117/12.175856

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