TY - JOUR
T1 - Refractive index measurements of solid parahydrogen
AU - Perera, Manori
AU - Tom, Brian A.
AU - Miyamoto, Yuki
AU - Porambo, Michael W.
AU - Moore, Lauren E.
AU - Evans, William R.
AU - Momose, Takamasa
AU - McCall, Benjamin J.
PY - 2011/3/15
Y1 - 2011/3/15
N2 - Solid para-H2 is a promising gain medium for stimulated Raman scattering, due to its high number density and narrow Raman linewidth. In preparation for the design of a cw solid hydrogen Raman laser, we have made the first measurements, to our knowledge, of the index of refraction of a solid para-H2 crystal, in the wavelength range of 430-1100nm. For a crystal stabilized at 4:4K, this refractive index is measured to be np-H2 = 1.130 ± 0:001 at 514nm. A slight, but significant, dependence on the final crystal-growth temperature is observed, with higher np-H 2 at higher crystal-growth temperatures. Once a crystal is grown, it can be heated up to 10 K with no change in np-H2 . The refractive index varies only slightly over the observed wavelength range, and no significant birefringence was observed.
AB - Solid para-H2 is a promising gain medium for stimulated Raman scattering, due to its high number density and narrow Raman linewidth. In preparation for the design of a cw solid hydrogen Raman laser, we have made the first measurements, to our knowledge, of the index of refraction of a solid para-H2 crystal, in the wavelength range of 430-1100nm. For a crystal stabilized at 4:4K, this refractive index is measured to be np-H2 = 1.130 ± 0:001 at 514nm. A slight, but significant, dependence on the final crystal-growth temperature is observed, with higher np-H 2 at higher crystal-growth temperatures. Once a crystal is grown, it can be heated up to 10 K with no change in np-H2 . The refractive index varies only slightly over the observed wavelength range, and no significant birefringence was observed.
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U2 - 10.1364/OL.36.000840
DO - 10.1364/OL.36.000840
M3 - Article
C2 - 21403702
AN - SCOPUS:79952836891
SN - 0146-9592
VL - 36
SP - 840
EP - 842
JO - Optics Letters
JF - Optics Letters
IS - 6
ER -