Temperature dependence of the Raman linewidth and line shift for the Q(1) and Q(0) transitions in normal and para-H2

Frequency dependence of coherently amplified two-photon emission from hydrogen molecules

“…The pressure of the p-H 2 is fixed at 60 kPa, which corresponds to a density of 5.6 × 10 19 cm −3 . In addition to narrow Doppler broadening due to the low temperature, the decoherence time of the vibrational level of p-H 2 has its maximum in this pressure region thanks to Dicke narrowing [16]. The decoherence time estimated from the reported Raman linewidth [16] for the wavelength-dependent transmittance, the output sides are sealed with either other MgF 2 windows for λ sig < 7 μm or barium fluoride (BaF 2 ) windows for λ sig > 7 μm.…”

Power-dependent dispersion in far-off-resonant raman scattering

“…(16). The dashed curve shows the low-power limit, (17). Curves drawn from the RWA equations would lie exactly on top of these curves due to the use of the same numbers for the terms identified as isotropic polarizabilities.…”

“…This occurs when the last term in (20) Additionally, the separation A z between the solid and dashed curves is again due to the last term in (16) and is approximately A z = (Zs(z) -Z,o)6p,8. ?r1013/~~-y where Z, ( z ) is calculated from (17). Thus, one can obtain an approximation to the power-dependent extraction equation by simply translating the low-power solution, (17), a distance Az.…”

“…4 shows two graphs of the radial Stokes intensity as a function of r / a at four propagation distances z = 25, 50, 75, and 100 cm. These are generated with (16), (17) when the initial conditions are given by ZJo exp ( -( r/o)' /2). The labeling of the two curves in each graph is consistent with our previous notation.…”

Feasibility of a 486 nm Fraunhofer Laser Source Based on a 4F sub 3/2 yields 4I sub 9/2 Neodymium Laser

“…At low density the Raman lineshape is Gaussian due to Doppler broadening. At densities above a critical value, the lineshape is Lorentzian and the linewidth for each transition can be described by a diffusion model (Bischel and Dyer, 1986) where…”