About iPhasematch
iPhasematch allows you to calculate the phasematching condition of nonlinear wavelength conversion such as SHG or SFM based on published Sellmeier equiations. Downconversion (OPO) can be figured out by the reverse of SFM....
iPhasematch allows you to calculate the phasematching condition of nonlinear wavelength conversion such as SHG or SFM based on published Sellmeier equiations. Downconversion (OPO) can be figured out by the reverse of SFM. It is a subset of the 'Qmix' function of a famous Windows software SNLO by Dr. Arlee Smith. This App does some of what SNLO does on your iOS device.
It takes the crystal, two input wavelengths, and temperature and gives the phasematching orientations, effective nonlinear optical coefficients, walk-off angles, angular tolerance and temperature tolerance. In case of SHG, it also gives spectral tolerance.
In biaxial crystals, it gives only the phasematching orientations in the principal planes, i.e., either theta=90 deg. or phi=0 or 90deg.
Currently supported crystals: BBO, BiBO, CBO, CLBO, LB4, LBO, KBBF, KDP, KD*P, KN, KTP, Mg:LN, Mg:sLN, RBBF, RTP, YAB.
NOTE: dn/dT data for LB4 was picked up from discrete data points in the reference and linearly extrapolated.
Interface should be intuitive, giving phasematching with a tap of "PM" button,refractive index with "index" button and group index with "Gp.Idx" button, for the given condition (crystal, wavelengths, and temperature).
DISCLAIMER: I cannot be held responsible for the result of the calculation it gives. I make every effort to make it accurate, and bug-free, but there could be errors in code. Please just use this on your own discretion.
Jan 20, 2021
Version 1.12
Added (long overdue) Sellemeier equation for MgO-doped stoichiometric lithium niobate.
Previous Versions
Here you can find the changelog of iPhasematch since it was posted on our website on 2023-09-06 18:31:21.
The latest version is 1.12 and it was updated on 2024-04-22 16:08:40. See below the changes in each version.
iPhasematch version 1.12
Updated At: 2021-01-20
Changes: Jan 20, 2021
Version 1.12
Added (long overdue) Sellemeier equation for MgO-doped stoichiometric lithium niobate.
Disclaimer
Official App Store Link
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