N. Gusakova , A. Camper , R. Caravita , L. Penasa , L.T. Glöggler , T. Wolz , V. Krumins , F.P. Gustafsson , S. Huck , M. Volponi , B. Rienäcker , G. Khatri , J. Malamant , S. Mariazzi , R.S. Brusa , L. Cabaret , D. Comparat , M. Doser
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Abstract
We report on a Q-switched alexandrite based 100 ns long pulse duration ultra-violet laser system. The central wavelength of the fundamental pulse is set by a Volume Bragg Grating in reflection and can be tuned between 728 nm and 742 nm. The spectral bandwidth is 130 GHz. This laser system was designed in view of Doppler cooling of a cloud of a near room temperature positronium by strongly saturating the – transition. In addition, we report on the development of a KD*P Pockels cell driver designed to both Q-switch the cavity and induce a sharp falling edge of the laser pulse so that the end of the positronium-laser interaction time can be controlled with nanosecond precision.
期刊介绍：
Optics & Laser Technology aims to provide a vehicle for the publication of a broad range of high quality research and review papers in those fields of scientific and engineering research appertaining to the development and application of the technology of optics and lasers. Papers describing original work in these areas are submitted to rigorous refereeing prior to acceptance for publication.
The scope of Optics & Laser Technology encompasses, but is not restricted to, the following areas:
•development in all types of lasers
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•techniques of optical metrology, including interferometry and optical fibre sensors
•LIDAR and other non-contact optical measurement techniques, including optical methods in heat and fluid flow
•applications of lasers to materials processing, optical NDT display (including holography) and optical communication
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•developments in quantum optics
•developments in light assisted micro and nanofabrication methods and techniques
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•developments in imaging processing and systems
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