Výsledky vyhledávání - "Poignant, H."

Akademický článek

Micro-optics and Bragg gratings for DWDM sources array

Autor: Thual, M ^{a, *}, Chanclou, P ^a, Lostec, J ^a, Laurent, A ^a, Poignant, H ^b

Publikováno v: In Optics Communications 2000 176(4):393-396

Akademický článek

Does photosensitivity pave the way towards the fabrication of miniature coherent light sources in inorganic glass waveguides?

Autor: Niay, P. ^{a, *}, Douay, M. ^a, Bernage, P. ^a, Xie, W.X. ^a, Leconte, B. ^a, Ramecourt, D. ^a, Delevaque, E. ^b, Bayon, J.F. ^b, Poignant, H. ^b, Poumellec, B. ^c

Publikováno v: In Optical Materials 1999 11(2):115-129

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Photon-avalanche upconversion of red light into blue light in a thulium-doped fluorozirconate fibre

Autor: Shepherd, D.P., Guy, S., Joubert, M.F., Jacquier, B., Poignant, H.

We report the investigation of the photon-avalanche effect in heavily thulium-doped fluorozirconate fibre. Pumping at red wavelengths, which are not resonant with the ground-state absorption, gives blue emission at 450nm and 480nm.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od_______348::c102655922380028380dfa0f7cca693f
https://eprints.soton.ac.uk/76946/

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Photon avalanche upconversion in heavily thulium-doped ZBLAN fibre

Autor: Jacquier, B., Guy, S., Joubert, M.F., Shepherd, D.P., Poignant, H.

Photon avalanche mechanism results from a cross relaxation energy transfer induced build up of population in an intermediate metastable level without resonant Ground State Absorption (GSA). From this level a resonant absorption occurs to populate a h

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od_______348::159d8b1a75a96133b4f73996c5f4c0a5
https://eprints.soton.ac.uk/76846/

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