200-mW-average power ultraviolet generation at 0.193 μm in K₂Al₂B₂O₇

Phase-Matching Conditions for Second-Harmonic and Sum-Frequency Generation in K₂Al₂B₂O₇ at 20 °C

^a  1/λ₁ + 1/λ₂ = 1/λ₃.
^b  The subscripts of the phase-matching angles represent the polarization directions. o and e refer to the ordinary and extraordinary polarizations, respectively.
^c  Phase-matching angles measured with the crystal cut at (θ = 68.7°, ϕ = 0°).

Temperature Phase-Matching Bandwidths (FWHM) for Second-Harmonic and Sum-Frequency Generation in K₂Al₂B₂O₇ a

^a  1/λ₁ + 1/λ₂ = 1/λ₃.
^b  The subscripts of the phase-matching angles represent the polarization directions. o and e refer to the ordinary and extraordinary polarizations, respectively.
^c  The temperature phase-matching bandwidths (FWHM) were measured with the crystal cut at (θ = 68.7°, ϕ = 0°).
^d  d θ_pm/dT > 0.

Table 1

Phase-Matching Conditions for Second-Harmonic and Sum-Frequency Generation in K₂Al₂B₂O₇ at 20 °C

^a  1/λ₁ + 1/λ₂ = 1/λ₃.
^b  The subscripts of the phase-matching angles represent the polarization directions. o and e refer to the ordinary and extraordinary polarizations, respectively.
^c  Phase-matching angles measured with the crystal cut at (θ = 68.7°, ϕ = 0°).

Table 2

Temperature Phase-Matching Bandwidths (FWHM) for Second-Harmonic and Sum-Frequency Generation in K₂Al₂B₂O₇ a

^a  1/λ₁ + 1/λ₂ = 1/λ₃.
^b  The subscripts of the phase-matching angles represent the polarization directions. o and e refer to the ordinary and extraordinary polarizations, respectively.
^c  The temperature phase-matching bandwidths (FWHM) were measured with the crystal cut at (θ = 68.7°, ϕ = 0°).
^d  d θ_pm/dT > 0.