We show that a liquid-hydrogen droplet can achieve high- <i>Q</i> values that exceed 10<sup>9</sup> for whispering-gallery modes in the ultraviolet. We show also that pumping high- <i>Q</i> liquid-hydrogen droplets with ultraviolet laser radiation generates many vibrational and rotational Raman sidebands that cover a broad spectral range from the ultraviolet to the near infrared.
© 2002 Optical Society of America
S. Uetake, R. S. D. Sihombing, and K. Hakuta, "Stimulated Raman scattering of a high-Q liquid-hydrogen droplet in the ultraviolet region," Opt. Lett. 27, 421-423 (2002)