Results 91 to 100 of about 5,782,871 (345)

Locking Phenomena in Semiconductor Lasers near Threshold with Optical Feedback and Sinusoidal Current Modulation

open access: yesApplied Sciences, 2021
The dynamics of semiconductor lasers with optical feedback and current modulation has been extensively studied, and it is, by now, well known that the interplay of modulation and feedback can produce a rich variety of nonlinear phenomena. Near threshold,
Jordi Tiana-Alsina, Cristina Masoller
doaj   +1 more source

Quantum entanglement in strong-field ionization [PDF]

open access: yes, 2017
We investigate the time-evolution of quantum entanglement between an electron, liberated by a strong few-cycle laser pulse, and its parent ion-core. Since the standard procedure is numerically prohibitive in this case, we propose a novel way to quantify ...
Benedict, Mihály G.   +2 more
core   +2 more sources

Buildup dynamics of dissipative soliton in an ultrafast fiber laser with net-normal dispersion.

open access: yesOptics Express, 2018
Taking advantage of technology of spatio-temporal reconstruction and dispersive Fourier transform (DFT), we experimentally observed the buildup dynamics of dissipative soliton in an ultrafast fiber laser in the net-normal dispersion regime.
Hong-Jie Chen   +7 more
semanticscholar   +1 more source

Automated FRAP microscopy for high‐throughput analysis of protein dynamics in chromatin organization and transcription

open access: yesFEBS Open Bio, EarlyView.
RoboMic is an automated confocal microscopy pipeline for high‐throughput functional imaging in living cells. Demonstrated with fluorescence recovery after photobleaching (FRAP), it integrates AI‐driven nuclear segmentation, ROI selection, bleaching, and analysis.
Selçuk Yavuz   +6 more
wiley   +1 more source

Ellipticity dependence of high-harmonic generation in solids originating from coupled intraband and interband dynamics

open access: yesNature Communications, 2017
The mechanisms of high-order harmonic generation in bulk system and dilute gas are different. Here the authors use first-principle methods to explore the ellipticity dependence and control of the HHG in periodic solids by involving the interband and ...
Nicolas Tancogne-Dejean   +3 more
doaj   +1 more source

Dynamics of Electrically Pumped Semiconductor Nano-Laser Arrays

open access: yesPhotonics, 2023
Semiconductor nano-lasers have been actively investigated both theoretically and experimentally with to the aim of providing a highly compact laser amenable to photonic integration.
Yuanlong Fan   +2 more
doaj   +1 more source

Small rare gas clusters in XUV laser pulses

open access: yes, 2003
Semi-classical molecular dynamics simulations of small rare gas clusters in short laser pulses of 100 nm wavelength were performed. For comparison, the cluster response to 800 nm laser pulses was investigated as well. The inner ionization dynamics of the
Bauer, D.
core   +2 more sources

Two-photon and EIT-assisted Doppler cooling in a three-level cascade system [PDF]

open access: yes, 2006
Laser cooling is theoretically investigated in a cascade three-level scheme, where the excited state of a laser-driven transition is coupled by a second laser to a top, more stable level, as for alkali-earth atoms.
American Physical Society   +2 more
core   +3 more sources

Raman‐based label‐free microscopic analysis of the pancreas in living zebrafish larvae

open access: yesFEBS Open Bio, EarlyView.
Forward stimulated Raman scattering (F‐SRS) and epi coherent anti‐Stokes Raman scattering (E‐CARS) allow label‐free discrimination of distinct subcellular structures in the pancreas of living zebrafish larvae. Given the straightforward applicability, we anticipate broad implementation of Raman microscopy in other organs and across various biomedical ...
Noura Faraj   +3 more
wiley   +1 more source

Theory of resonantly enhanced photo-induced superconductivity

open access: yesNature Communications
Optical driving of materials has emerged as a versatile tool to control their properties, with photo-induced superconductivity being among the most fascinating examples.
Christian J. Eckhardt   +5 more
doaj   +1 more source

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