Q-vis Limited

Hank Christian Sciberras

Geoffrey Thomas Dair

Philip George Reid

Sharon Lee Humphris

Zheng Lin Wang

Crystal housing apparatus for adjustably positioning cooperating non-linear optical crystals in a laser beam generating system, includes a housing () with entry () and exit () windows for respective laser beams, respective holder means () to retain respective crystals within the housing in optical alignment with the windows, and means () mounting the respective holder means for individual fine rotational adjustment of the crystals about respective axes. Individual temperature control elements () are mounted in association with the respective holder means for controlling the temperature of the respective crystals and means () is provided for effecting the fine rotational adjustment of the crystals.

Crystal mounting in solid state laser systems

A method of treating a surface by laser ablation to modify selected regions of the surface, while other regions of the surface not to be substantially ablated are protected from the laser beam by a masking fluid, wherein the masking fluid comprises a solution of a pharmaceutically acceptable pyrido benzoxazine compound or derivative thereof effective as a masking agent.

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Joondanna, Australia

Hank Christian Sciberras