期刊
QUANTUM ELECTRONICS
卷 40, 期 11, 页码 966-985出版社
TURPION LTD
DOI: 10.1070/QE2010v040n11ABEH014445
关键词
ultrashort laser pulses; transparent crystals; optical glasses; waveguide structures; numerical modelling; multiphoton ionisation; avalanche ionisation; photoemission; Coulomb explosion; crater shaping; elastoplastic deformations
We analyse the processes taking place in transparent crystals and glasses irradiated by ultrashort laser pulses in the regimes typical of various applications in optoelectronics and photonics. We consider some phenomena, which have been previously described by the authors within the different model representations: charging of the dielectric surface due to electron photoemission resulting in a Coulomb explosion; crater shaping by using an adaptive control of the laser pulse shape; optimisation of the waveguide writing in materials strongly resistant to laser-induced compaction under ordinary irradiation conditions. The developed models and analysis of the processes relying on these models include the elements of the solid-state physics, plasma physics, thermodynamics, theory of elasticity and plasticity. Some important experimental observations which require explanations and adequate description are summarised.
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