Nonresonant sum- and difference-frequency mixing of the fundamental omega(L) and the second harmonic omega(UV) radiation of a powerful narrowband pulsed dye laser system excited by an Nd:YAG laser (lambda(L) = 5500-6500 A) generates intense VUV radiation in krypton and xenon with the frequency omega(VUV) = 2omega(UV) micro omega(L). The sum-frequency is tunable in spectral regions of negative dispersion between 1100 and 1300 A. The maximum VUV pulse power exceeds 20 W (5 x 10(10) photons/pulse). VUV light pulses with up to 60 W (2.3 x 10(11) photons/pulse) are provided by the difference-frequency at wavelengths between 1850 and 2070 A. In addition the conversion process omega(VUV) = 2omega(UV) - omega(IR) (omega(IR) is the frequency of the Nd:YAG laser) generates radiation in the wavelength range of 1595-1866 A. With present laser systems the tuning range of the difference-frequency could be extended to wavelengths as short as 1226 A. The sum- and difference-frequency conversion will thus provide intense coherent VUV light continuously tunable between 1100 and 2100 A.
A b s t r a c tThird-and fifth -order sum-and difference frequency conversion of pulsed dye laser radiation generates coherent tunable radiation in the vacuum ultraviolet at wavelengths X = 60 -200 nm. The generated VUV vuv light is of narrow spectral width (AE = 0.01 -1 cm -1 ) and high intensity (0.8 -104 W; 2.109 -3.10 3 photons /pulse). Because of the high spectral brightness these VUV light sources are a useful tool for VUV spectroscopy of atoms and molecules.
AbstractThirdand fifth-order sumand difference frequency conversion of pulsed dye laser radiation generates coherent tunable radiation in the vacuum ultraviolet at wavelengths A = 60 -200 nm. The generated VUV light is of narrow spectral width (AE = 0.01 -1 cm" ) and high intensity (0.8 -10 W; 2-109 -3-10 3 photons/pulse). Because of the high spectral brightness these VUV light sources are a useful tool for VUV spectroscopy of atoms and molecules. Downloaded From: http://proceedings.spiedigitallibrary.org/ on 06/25/2016 Terms of Use: http://spiedigitallibrary.org/ss/TermsOfUse.aspx
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.