Objective
The main objectives of the project consist in investigating theoretically and experimentally the possibilities of enhancing efficiencies of non-linear optical frequency conversion (second harmonic generation, sum- and difference-frequency mixings) and parametric generation as well as studying spectral features of these processes making use of flattop and non-diffracting Bessel beams.
The main expected results are the following. A new technique will be developed for synthesizing Bessel beams as well as the known techniques of forming Bessel and flat-top beams will be optimised for applicability in non-linear optics.
The theory will be extended for nonlinear frequency-conversion of Bessel beams, including second harmonic generation as well as sum- and difference-frequency mixing and parametric oscillation.
The characteristic features of spatial matching and spectral-line narrowing for three-wave interaction of Bessel beams will be studied.
The detailed theoretical and experimental analysis will be made for the Bessel - Bessel and Bessel - flat-top beam interactions maintaining initial beam profiles for arbitrary values of conversion efficiencies.
The second harmonic generation as well as sum- and difference frequency mixings for Bessel and flat-top beams will be investigated experimentally.
The optical radiation in the form of Bessel beams will be obtained at fixed frequencies in the ultraviolet and infrared spectral ranges at coherent sum- and difference-frequency mixing of laser radiations.
New approach to spectral-line narrowing in parametric interaction process will be advanced as well as practical recommendations will be proposed for engineering of practical devices forming intensive laser radiation with Bessel-beam profile at various spectral wavelengths.
Call for proposal
Data not availableFunding Scheme
Data not availableCoordinator
M13 9PL Manchester
United Kingdom