Results 11 to 20 of about 5,648,023 (377)

An inhibited laser [PDF]

open access: yesCommunications Physics, 2021
AbstractTraditional lasers function using resonant cavities, in which the round-trip optical path is equal to an integer multiple of the intracavity wavelengths to constructively enhance the spontaneous emission rate. Taking advantage of the cavity enhancement effect, the narrowest sub-10-mHz-linewidth laser and a 10−16-fractional-frequency-stability ...
Tiantian Shi, Duo Pan, Jingbiao Chen
openaire   +4 more sources

Laser optomechanics [PDF]

open access: yesScientific Reports, 2015
AbstractCavity optomechanics explores the interaction between optical field and mechanical motion. So far, this interaction has relied on the detuning between a passive optical resonator and an external pump laser. Here, we report a new scheme with mutual coupling between a mechanical oscillator supporting the mirror of a laser and the optical field ...
Gerke, Stephen   +5 more
openaire   +6 more sources

Lasers [PDF]

open access: yesAnnales de Dermatologie et de Vénéréologie, 2012
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

Maxwell Meets Marangoni—A Review of Theories on Laser‐Induced Periodic Surface Structures

open access: yesLaser & Photonics reviews, 2020
Surface nanostructuring enables the manipulation of many essential surface properties. With the recent rapid advancements in laser technology, a contactless large‐area processing at rates of up to m2 s−1 becomes feasible that allows new industrial ...
J. Bonse, S. Gräf
semanticscholar   +1 more source

Overexpression of NtERF5, a New Member of the Tobacco Ethylene Response Transcription Factor Family Enhances Resistance to Tobacco mosaic virus

open access: yesMolecular Plant-Microbe Interactions, 2004
A new member of the tobacco (Nicotiana tabacum) AP2/ERF (ethylene response factor) transcription factor family, designated NtERF5, has been isolated by yeast one-hybrid screening.
Ute Fischer, Wolfgang Dröge-Laser
doaj   +1 more source

Electron - positron cascades in multiple-laser optical traps [PDF]

open access: yes, 2016
We present an analytical and numerical study of multiple-laser QED cascades induced with linearly polarised laser pulses. We analyse different polarisation orientations and propose a configuration that maximises the cascade multiplicity and favours the ...
Fonseca, Ricardo A.   +3 more
core   +2 more sources

Comparison of endothelial cell loss in diabetic patients after conventional phacoemulsification and femtosecond laser-assisted cataract surgery

open access: yesBMC Ophthalmology, 2023
Purpose This study aims to comparatively evaluate the morphological changes of the cornea after phacoemulsification (PHACO) and femtosecond laser-assisted cataract surgery (FLACS) without intercurrences in patients with type 2 diabetes mellitus.
João Carlos Gonçalves Cruz   +6 more
doaj   +1 more source

Contrasting the beam interaction characteristics of selected lasers with a partially stabilised zirconia (PSZ) bio-ceramic [PDF]

open access: yes, 2002
Differences in the beam interaction characteristics of a CO2 laser, a Nd:YAG laser, a high power diode laser (HPDL) and an excimer laser with a partially stabilised zirconia (PSZ) bio-ceramic have been studied.
Bradley L   +16 more
core   +1 more source

To laser or not?

open access: yesIndian Journal of Ophthalmology, 2018
A 64-year-old male patient presented to the clinic with diminished vision in his right eye for the past 2 years. Examination revealed a best-corrected visual acuity (BCVA) of counting fingers at 1 m with a scarred choroidal neovascular membrane (CNVM) in the right eye while the left eye had a BCVA of 20/20 with a small peripapillary subretinal ...
Govindhari, Jay Chhablani
openaire   +3 more sources

Unresonant interaction of laser beams with microdroplets [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2012
The interaction of distilled water droplets (volumes of 3-4 µl) with pulsed laser beams emitted at 532 nm is described. At 532 nm the distilled water absorption is very low and the interaction of a water droplet with the laser radiation is dominated by ...
Pascu M. L.   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy