Refractive indices of congruently melting lithium niobate

Abstract

The ordinary and extraordinary refractive indices of congruently melting LiNbO3 in the wavelength range 0.40463–3.05148 μm are reported.

A two-dimensional nonlinear photonic crystal for strong second harmonic generation

“…Figure 2 shows that in the wavelength range of 0.5-1.6 m. Eq. ͑2͒ fits the dispersion data in congruent LiNbO 3 at room temperature 11,12 fairly well, verifying the validity of our model. The recursive convolution method developed by Luebbers et al 13 and Lubbers and Hunsberger 14 is used in the FD-TD calculation with the dispersion effect.…”

Influence of small polarons on the optical properties ofMg:LiNbO3Китаева1, Кузнецов2, Penin3 et al. 2002Phys. Rev. B26130View full textAdd to dashboardCite

“…5,6 Accurate data on refractive indices are required for a variety of applications. Refractive indices were measured for concrete type of LiNbO 3 crystal: for undoped LiNbO 3 crystals of different nonstochiometric composition, [7][8][9][10][11] for differently Mg-doped crystals, [12][13][14][15][16][17][18] and others. Zelmon, Small, and Jundt 16 obtained Sellmeier equations for the largest spectral interval for congruent LiNbO 3 and for Mg:LiNbO 3 , grown from the melt of 5 mol % MgO.…”

Photonic energy lifters and event horizons with time-dependent dielectric structures

“…To minimize dispersion, I first consider that pulses with a few ps duration have a spectrum width of the order of 1 nm at wavelength λ 1550 nm. The relative refractive index variation ∆n e /n e over 1 nm is of the order of 10 −5 [105]. The effect on the group velocity v g = c n − λ dn dλ…”

“…The diameter is d 5.9 mm and it has lateral spherical profile, to create an equator along the vertical direction of the disk, hence it behaves a spherical WGR [103]. TE polarized light is coupled by evanescent waves in and out of the WGR using two diamond prisms, whose refractive index n o 2.386 [104] is larger than the extraordinary index n e 2.138 of LiNbO 3 [105] in all the spectral region of interest for this work (vacuum wavelength λ 1550 nm). Double prism setup is selected because it avoids interference between the output and the uncoupled fraction of the input beam.…”