Lithium Fluoride (LiF) presents interesting optical properties and it has been proposed as an active optical material for colour centre (CC) lasers and amplifiers. The use of a grating to reduce the laser threshold and to narrow the line-width has also been demonstrated. More recently, LiF gained increased attention due to its unique characteristics as x-ray imaging detector for high resolution microscopy and for the development of CC lasers using gratings induced by high energy femtosecond laser pulses. We present a review of our recent work in the production of photonic structures, like photo-induced Bragg gratings and wave-guides either by laser CW illumination or by femtosecond laser irradiation. CW laser illuminated gratings were written in both coloured LiF crystals and films. Gratings and wave-guides are characterized using confocal microscopy, optical absorption and emission spectroscopy, near field scanning, scattering and insertion loss measurements.

Periodic Photonic Structures in Lithium Fluoride / H. j., Kalinowski; I., Chiamenti; R. m., Monterali; M. a., Vincenti; F., Bonfligli; Michelotti, Francesco; R. n., Nogueira. - STAMPA. - 8001:(2011), pp. 800114-800114-8. (Intervento presentato al convegno International Conference on Applications of Optics and Photonics tenutosi a Braga, PORTUGAL nel MAY 03-07, 2011) [10.1117/12.894400].

Periodic Photonic Structures in Lithium Fluoride

MICHELOTTI, Francesco;
2011

Abstract

Lithium Fluoride (LiF) presents interesting optical properties and it has been proposed as an active optical material for colour centre (CC) lasers and amplifiers. The use of a grating to reduce the laser threshold and to narrow the line-width has also been demonstrated. More recently, LiF gained increased attention due to its unique characteristics as x-ray imaging detector for high resolution microscopy and for the development of CC lasers using gratings induced by high energy femtosecond laser pulses. We present a review of our recent work in the production of photonic structures, like photo-induced Bragg gratings and wave-guides either by laser CW illumination or by femtosecond laser irradiation. CW laser illuminated gratings were written in both coloured LiF crystals and films. Gratings and wave-guides are characterized using confocal microscopy, optical absorption and emission spectroscopy, near field scanning, scattering and insertion loss measurements.
2011
International Conference on Applications of Optics and Photonics
bragg gratings; colour centres; fluorescence microscopy; lithium fluoride; optical waveguides
04 Pubblicazione in atti di convegno::04b Atto di convegno in volume
Periodic Photonic Structures in Lithium Fluoride / H. j., Kalinowski; I., Chiamenti; R. m., Monterali; M. a., Vincenti; F., Bonfligli; Michelotti, Francesco; R. n., Nogueira. - STAMPA. - 8001:(2011), pp. 800114-800114-8. (Intervento presentato al convegno International Conference on Applications of Optics and Photonics tenutosi a Braga, PORTUGAL nel MAY 03-07, 2011) [10.1117/12.894400].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/391090
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