Results 21 to 30 of about 322,270 (296)

Passively mode-locked semiconductor lasers and their applications [PDF]

, 2008
In this paper we present some characterizations of passively mode-locked semiconductor lasers. These lasers are multimode and they exhibit a modulation of their output power even though they are DC-biased.
Frederic Surre, Surre, Frederic, Latkowski, Sylwester, Sylwester Latkowski, Pascal Landais, Landais, Pascal   +5 more
core   +2 more sources

One- and two-photon pumped organic semiconductor lasers [PDF]

, 2009
This thesis describes a number of studies on organic semiconductors focused around using them as gain media for lasers. The photophysical properties of organic semiconductors are studied using a wide range of experimental techniques, allowing the ...
Tsiminis, Georgios, Skabara, P., Samuel, I., Turnbull, G., Samuel, Ifor David William, Shaw, P., Perepichka, Igor F., Kanibolotsky, A.L., Dawson, M., Kanibolotsky, Alexander L., Perepichka, I., Paul E. Shaw, Graham A. Turnbull, Turnbull, Graham A., Samuel, Ifor D. W., Skabara, P.J., Wang, Yu, Ifor D. W. Samuel, Tsiminis, G., Kanibolotsky, A., Georgios Tsiminis, Alexander L. Kanibolotsky, Igor F. Perepichka, Shaw, Paul Edward, Martin D. Dawson, Wang, Yue, Dawson, M.D., Perepichka, I.F., Skabara, Peter J,, Shaw, Paul E., Skabara, Peter J., Peter J. Skabara, Wang, Y., Dawson, Martin D., Yue Wang, Samuel, Ifor David William; id_orcid, Turnbull, Graham A.; id_orcid   +36 more
core   +1 more source

Development of high-speed directly-modulated DFB and DBR lasers with surface gratings [PDF]

, 2011
The conventional distributed feedback and distributed Bragg reflector edge-emitting lasers employ buried gratings, which require two or more epitaxial growth steps.
M. Dumitrescu, Sek, G., REITHMAIER J. P., EISENSTEIN G., KARINEN J., P. Bardella, P. Melanen, MELANEN P., GREADY D., SEK G., G. Sek, O. Parillaud, S. Afzal, Laakso, A., J. Telkkälä, Reithmaier J.-P., Afzal, S., P. Uusimaa, Montrosset, Ivo, D. Gready, PARILLAUD O., Melanen, P., Bardella, Paolo, Vallone, Marco Ernesto, VIHERIÄLÄ J., KAMP M., Telkkälä, J., J.-P. Reithmaier, J. Karinen, Parillaud, O., Dumitrescu, M., DUMITRESCU M., Gready, D., M. Vallone, M. Krakowski, G. Eisenstein, Uusimaa, P., Viheriälä, J., A. Laakso, I. Montrosset, Eisenstein, G., J. Viheriälä, Karinen, J., AFZAL S., LAAKSO A., TELKKÄLÄ J., UUSIMAA P., Kamp, M., M. Kamp   +48 more
core   +1 more source

Yb:tungstate waveguide lasers [PDF]

, 2011
Lasers find a wide range of applications in many areas including photo-biology, photo-chemistry, materials processing, imaging and telecommunications. However, the practical use of such sources is often limited by the bulky nature of existing systems.
Bain, Fiona Mair
core   +2 more sources

High-power amplified spontaneous emission pulses with tunable coherence for efficient non-linear processes

Scientific Reports, 2021
We report on a detailed study of an amplified spontaneous emission source operated in a pulsed regime with particular attention paid to the influence of high-intensity chaotic temporal events on the generation of nonlinear processes. To this aim, we have
Nicolas Valero, Denis Marion, Jerome Lhermite, Jean-Christophe Delagnes, William Renard, Romain Royon, Eric Cormier   +6 more
doaj   +1 more source

Nitrites Detection with Sensors Processed via Matrix-Assisted Pulsed Laser Evaporation

Nanomaterials, 2022
This work is focused on the application of a laser-based technique, i.e., matrix-assisted pulsed laser evaporation (MAPLE) for the development of electrochemical sensors aimed at the detection of nitrites in water.
Cristina Craciun, Florin Andrei, Anca Bonciu, Simona Brajnicov, Tatiana Tozar, Mihaela Filipescu, Alexandra Palla-Papavlu, Maria Dinescu   +7 more
doaj   +1 more source

Dual wavelength digital holography for 3D particle image velocimetry [PDF]

Journal of the European Optical Society-Rapid Publications, 2015
A multi-exposure digital in-line hologram of a moving particle field is recorded by two different wavelengths and at different times. As a result, during the reconstruction step, each hologram can be independently and accurately reconstructed for each ...
Grare S., Coëtmellec S., Allano D., Grehan G., Brunel M., Lebrun D.   +5 more
doaj   +1 more source

Phase-sensitive seeded modulation instability in passive fiber resonators

Communications Physics, 2022
Modulation instability refers to the sensitivity of dispersive, weakly nonlinear systems to small perturbations and may be used as a source of optical gain.
Florent Bessin, Corentin Naveau, Matteo Conforti, Alexandre Kudlinski, Pascal Szriftgiser, Arnaud Mussot   +5 more
doaj   +1 more source

Hydroxyapatite Thin Films of Marine Origin as Sustainable Candidates for Dental Implants

Pharmaceutics, 2023
Novel biomaterials with promising bone regeneration potential, derived from rich, renewable, and cheap sources, are reported. Thus, thin films were synthesized from marine-derived (i.e., from fish bones and seashells) hydroxyapatite (MdHA) by pulsed ...
Gabriela Dorcioman, Valentina Grumezescu, George E. Stan, Mariana Carmen Chifiriuc, Gratiela Pircalabioru Gradisteanu, Florin Miculescu, Elena Matei, Gianina Popescu-Pelin, Irina Zgura, Valentin Craciun, Faik Nüzhet Oktar, Liviu Duta   +11 more
doaj   +1 more source

Single-shot measurement of the photonic band structure in a fiber-based Floquet-Bloch lattice

Communications Physics, 2021
Floquet-Bloch lattices are systems that are relatively difficult to implement in solid-state physics. Here, using a photonic lattice as an alternative, the authors experimentally observe Floquet-Bloch bands using a single-shot method which allows them to
Corentin Lechevalier, Clément Evain, Pierre Suret, François Copie, Alberto Amo, Stéphane Randoux   +5 more
doaj   +1 more source