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radiasoft / rslaser

Integrated modeling of CPA crystal-based laser amplifiers
Apache License 2.0
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add wavelength dependence to thin lenses #72

Open bruhwiler opened 1 year ago

bruhwiler commented 1 year ago

Chromatic effects are significant in laser amplifiers and must be included. The predominant effect can be captured by including wavelength dependence in thin lenses.

The thin lens class should have a data member specifying the central wavelength, as well as the focal length. The wavefront propagator class should query this wavelength and calculate a delta_lambda from the laser pulse slice.

A reasonable wavelength dependence of the focal length should be implemented and applied. If the wavelength difference is too large, then an exception should be thrown.

@bnash -- please take the lead on identifying an appropriate algorithm for wavelengths around 800 nm and (presumably) glass lenses. Work with @gurhar1133 to get the algorithm implemented.

This is related to issue #39.

bruhwiler commented 1 year ago

This is an important feature, but development will have to wait until new resources have been identified.