Results 11 to 20 of about 253,283 (318)
Osseous implantology’s material requirements include a lack of potential for inducing allergic disorders and providing both functional and esthetic features for the patient’s benefit.
Livia Elena Sima +6 more
doaj +1 more source
All-fiber frequency agile triple-frequency comb light source
Tricomb spectroscopy unveils a new dimension to standard linear and nonlinear spectroscopic analysis, offering the possibility to reveal the almost real-time evolution of complex systems with unprecedented accuracy. Current triple comb configurations are
Eve-Line Bancel +9 more
doaj +1 more source
Lasers are a very effective approach for treating many hyperpigmented lesions. They are the gold standard treatment for actinic lentigos and dermal hypermelanocytosis, such as Ota nevus. Becker nevus, hyperpigmented mosaicisms, and lentigines can also be successfully treated with lasers, but they could be less effective and relapses can be observed ...
openaire +3 more sources
Interband cascade lasers for the mid-infrared spectral region [PDF]
Financial support of this work by the German Ministry of Education and Research (FKZ: 13N12440) and by the European Commission in the framework of the FP7 project 'WideLase’ (grant no.
Dallner, M. +7 more
core +1 more source
Efficient plasma electron accelerator driven by linearly chirped multi-10-TW laser pulses
The temporal rearrangement of the spectral components of an ultrafast and intense laser pulse, i.e., the chirp of the pulse, offers significant possibilities for controlling its interaction with matter and plasma. In the propagation of ultra-strong laser
A. Grigoriadis +6 more
doaj +1 more source
Supermode Si/III-V Lasers and Circular Bragg Lasers [PDF]
Semiconductor lasers are arguably the most important component in optical communications. This thesis investigates two types of semiconductor lasers that are useful in integrated optics.
Sun, Xiankai
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Toward low-loss mid-infrared Ga2O3–BaO–GeO2 optical fibers
The development of efficient and compact photonic systems in support of mid-infrared integrated optics is currently facing several challenges. To date, most mid-infrared glass-based devices are employing fluoride or chalcogenide glasses (FCGs).
Théo Guérineau +12 more
doaj +1 more source
Development of high-speed directly-modulated DFB and DBR lasers with surface gratings [PDF]
The conventional distributed feedback and distributed Bragg reflector edge-emitting lasers employ buried gratings, which require two or more epitaxial growth steps.
M. Dumitrescu +48 more
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Rod Laser – The first laser was a rod laser [PDF]
Laser technology is relatively young. The first laser was built in 1960 by Maiman at AT&T Labs in the USA. It was a rod-shaped ruby laser, this arrangement having been chosen for its favourable symmetry (Fig. 1). Starting from this device, the technology of solid-state lasers developed rapidly.
Hans Amler, Josef Thumbs
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One- and two-photon pumped organic semiconductor lasers [PDF]
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
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