Search Results - "Chenais, S"

Highly photo-stable, kHz-repetition-rate, diode pumped circulation-free liquid dye laser with thermal lens management by Hamja, A., Florentin, R., Chénais, S., Forget, S.

“…Liquid dye lasers have long been considered as ideal tunable laser sources in the visible range but are bulky, expensive, and require a complex system for dye…”
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80-μs pulsewidth from a circulation-free diode-pumped liquid organic laser limited by thermal blooming by Longo, A V, Hamja, A, Forget, S, Chenais, S

“…Continuous-wave laser emission is challenging to obtain in organic lasers, whether in the solid or liquid form, a limitation caused by long-lived triplet…”
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Enhancing brightness of Lambertian light sources with luminescent concentrators: the light extraction issue by Gallinelli, T, Barbet, A, Druon, F, Balembois, F, Georges, P, Billeton, T, Chenais, S, Forget, S

“…Luminescent concentrators (LC) enable breaking the limit of geometrical concentration imposed by the brightness theorem. They enable increasing the brightness…”
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Gain properties of dye-doped polymer thin films by Gozhyk, I., Boudreau, M., Haghighi, H. Rabbani, Djellali, N., Forget, S., Chénais, S., Ulysse, C., Brosseau, A., Pansu, R., Audibert, J.-F., Gauvin, S., Zyss, J., Lebental, M.

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High-radiance light sources with LED-pumped luminescent concentrators applied to pump Nd:YAG passively Q-switched laser by Pichon, P., Barbet, A., Blengino, D., Legavre, P., Gallinelli, T., Druon, F., Blanchot, J.-P., Balembois, F., Forget, S., Chénais, S., Georges, P.

“…•High-radiance LEDs pump Ce:YAG luminescent concentrators are described.•First Q-switched indirectly LED-pumped Nd:YAG laser at room temperature.•First…”
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Diffusion of triplet excitons in an operational organic light-emitting diode by Lebental, M., Choukri, H., Chénais, S., Forget, S., Siove, A., Geffroy, B., Tutiš, E.

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Thermal lensing in diode-pumped ytterbium Lasers-Part I: theoretical analysis and wavefront measurements by Chenais, S., Balembois, F., Druon, F., Lucas-Leclin, G., Georges, P.

“…A theoretical and experimental study of thermal lensing in Yb-doped crystals is presented. In this first part, we focus on theoretical considerations and we…”
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White organic light-emitting diodes with an ultra-thin premixed emitting layer by Jeon, T., Geffroy, B., Tondelier, D., Bonnassieux, Y., Forget, S., Chenais, S., Ishow, E.

“…We described an approach to achieve fine color control of fluorescent White Organic Light-Emitting Diodes (OLED), based on an Ultra-thin Premixed emitting…”
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Diode-pumped Yb:GGG laser: comparison with Yb:YAG by Chénais, S., Druon, F., Balembois, F., Georges, P., Brenier, A., Boulon, G.

“…A diode-pumped ytterbium-doped Gd 3Ga 5O 12 (Yb:GGG) laser is reported for the first time. We report up to 4.2 W of CW laser power when pumping on the 971 nm…”
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Thermal lensing in diode-pumped ytterbium Lasers-Part II: evaluation of quantum efficiencies and thermo-optic coefficients by Chenais, S., Balembois, F., Druon, F., Lucas-Leclin, G., Georges, P.

“…A theoretical and experimental study of thermal lensing in Yb-doped crystals is presented. This papers follows the presentation of theoretical considerations…”
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Direct and absolute temperature mapping and heat transfer measurements in diode-end-pumped Yb:YAG by CHENAIS, S, FORGET, S, DRUON, F, BALEMBOIS, F, GEORGES, P

“…We report on direct and absolute temperature measurements in a diode-end-pumped Yb:YAG crystal, using a calibrated infrared camera, with a 60…”
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Enhanced generation of vacuum-ultraviolet radiation by four-wave mixing in mercury using pulsed laser vaporization by CHENAIS, S, FORGET, S, PHILIPPET, L, CASTEX, M.-C

“…The efficiency of a coherent vacuum ultraviolet (VUV) source at 125 nm, based on two-photon resonant four-wave mixing in mercury vapor, has been enhanced by up…”
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Doped and non-doped organic light-emitting diodes based on a yellow carbazole emitter into a blue-emitting matrix by Choukri, H., Fischer, A., Forget, S., Chenais, S., Castex, M.-C., Geffroy, B., Adès, D., Siove, A.

“…A new carbazole derivative with a 3,3′-bicarbazyl core 6,6′-substituted by dicyanovinylene groups (6,6′-bis(1-(2,2′-dicyano)vinyl)- N,…”
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Multiwatt, tunable, diode-pumped CW Yb:GdCOB laser by CHENAIS, S, DRUON, F, VIVIEN, D, BALEMBOIS, F, LUCAS-LECLIN, G, GEORGES, P, BRUN, A, ZAVELANI-ROSSI, M, AUGE, F, CHAMBARET, J. P, AKA, G

“…We demonstrate that Yb-doped Ca4GdO(BO3)3 (GdCOB) crystals are suitable for the development of high-power diode-pumped lasers emitting at around 1.04 *mm. A…”
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Polarization properties of solid-state organic lasers by Gozhyk, I., Clavier, G., Méallet-Renault, R., Dvorko, M., Pansu, R., Audibert, J.-F., Brosseau, A., Lafargue, C., Tsvirkun, V., Lozenko, S., Forget, S., Chénais, S., Ulysse, C., Zyss, J., Lebental, M.

“…The polarization states of lasers are crucial issues both for practical applications and fundamental research. In general, they depend in a combined manner on…”
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First diode-pumped Yb-doped solid-state laser continuously tunable between 1000 and 1010 nm by JACQUEMET, M, BALEMBOIS, F, CHENAIS, S, DRUON, F, GEORGES, P, GAUME, R, FERRAND, B

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Enhanced production of coherent pulsed radiation at 125 nm: The route towards a tabletop VUV laser by Chenais, S., Forget, S., Castex, M.-C.

“…A novel approach is used to enhance by nearly two orders of magnitude the conversion efficiency of a 125 nm-coherent source, based on four-wave mixing in…”
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Mechanical, thermal and laser properties of Yb:(Sr 1− xCa x) 3Y(BO 3) 3 (Yb:CaBOYS) for 1 μm laser applications by Gaumé, R., Viana, B., Vivien, D., Roger, J.P., Fournier, D., Souron, J.P., Wallez, G., Chénais, S., Balembois, F., Georges, P.

“…Yb:Sr 3Y(BO 3) 3 also known as Yb:BOYS has recently demonstrated very attractive laser properties, but a drawback with this material is its brittleness. It…”
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Highly efficient multilayer organic pure-blue-light emitting diodes with substituted carbazoles compounds in the emitting layer by Fischer, A., Forget, S., Chenais, S., Castex, M.-C., Ades, D., Siove, A., Denis, C., Maisse, P., Geffroy, B.

“…Bright-blue organic-light-emitting-diodes based on carbazolic-compounds as emitting layers or dopant in DPVBi matrix are described. Pure-blue light with CIE…”
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Color tunability (including white) in OLEDs by shifting the position of an ultrathin yellow layer in a blue matrix by Choukri, H., Fischer, A., Forget, S., Chenais, S., Castex, M.-C., Ades, D., Siove, A., Lemaitre, N., Denis, C., Maisse, P., Geffroy, B.

“…We present a multilayer organic-light-emitting-diode design which allows total control of the emitted color (including white emission) through the accurate…”
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