Production of intense, coherent, tunable narrow-band lyman-alpha radiation

Details Production of intense, coherent, tunable narrow-band lyman-alpha radiation Production of intense, coherent, tunable narrow-band lyman-alpha radiation

Oct 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988aipc..172...49t&link_type=abstract

AIP Conference Proceedings, Volume 172, pp. 49-51 (1988).

Computer Science

Frequency Conversion, Harmonic Generation, Including Higher-Order Harmonic Generation

Scientific paper

Nearly transform limited pulses of 1216 A˚ radiation have been generated by sum frequency generation in 0.1 to 10 torr of mercury vapor. The summed input beams, consisting of photons at 3127 A˚ and 5454 A˚ originate in 1 MHz band-width ring-dye laser oscillators. The beams are amplified in pulsed-dye amplifiers pumped by the frequency doubled output of a Nd:YAG laser. The 3127 A˚ photons are tuned to be resonant with the two-photon 61S to 71S mercury transition. The VUV radiation can be tuned by varying the frequency of the third non-resonant photon. We have also observed difference frequency generation at 2193 A˚ and intense fluorescence from the 61P state at 1849 A˚. We have studied the intensity and linewidth dependence of the 1849 A˚ fluorescence and 1216 A˚ sum frequency signals on input beam intensity, mercury density, and buffer gas pressure and composition.

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