My question comes from the need of UV broadband CW (or an impulse source with a high repetition rate ~ 1-5 kHz ) source of radiation, with more or less linear spectrum in 200 - 300 nm wavelength range, with about
Have you consider Xe lamp as UV source? There are cw 35W lamp with ark length 1mm, or 500W with ark length 3 mm or Xe lamp with 100 um fiber output/
Laser spark properties is investigated in LIBS (for example in book A.W Miziolek. LIBS, also translated in Russian).
Thank you, Yury.
1. Unfortunately, arks in Xe lamps are too spatially spread. I failed to find any reports of any efficient collimation of radiation from a lamp into SM-fiber core 1 - 5 um in diameter. The losses are predictiсtably significant. There are commercially available sources of whitelight with 50um, 250um core fiber output. For example: LDLS.
2. Indeed, LIBS - Laser-induced breakdown spectroscopy - uses laser spark to examine spectrums of different samples. The spectrum is defined by the sample chemical properties, which themselves are the subject of examination. But this isn't exactly what I was searching for..
3. Edinburgh Instruments make commercially available spectrometers, including the sources based on laser spark discharge plasma. This is the most close solution I had found so far. But those sources are seriously wideband, stretching from 170nm up to 1 um. I was interested in shorter range 200-300 nm.
May be supercontinuum emission by 2 or 3 harmonics of Ti:Sa laser will fit your requirements.
Dear Alexey, could you please give any concrete example of such laser?
http://www.spectra-physics.com/products/ultrafast-lasers - lasers.
http://eksmaoptics.com/femtoline-components/femtoline-nonlinear-laser-crystals/femtokits-for-third-harmonic-generation-of-ti-sapphire-laser/ - harmonics generation.
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