Results 61 to 70 of about 574 (177)

Enhancement and Speed‐Up of Carrier Dynamics in A Dielectric Nanocavity with Deep Sub‐Wavelength Confinement

open access: yesLaser &Photonics Reviews, Volume 20, Issue 7, 6 April 2026.
This work presents the first experimental investigation of ultrafast dynamics in dielectric bowtie nanocavities, featuring deep‐subwavelength mode confinement. Measurements reveal enhanced two‐photon absorption, sub‐picosecond carrier relaxation, and strong pump–probe interactions, demonstrating clear advantages over conventional nanocavities for low ...
Gaoneng Dong   +6 more
wiley   +1 more source

Mode‐Locked Pulse Generation in Plasmonic Lattices

open access: yesLaser &Photonics Reviews, Volume 20, Issue 7, 6 April 2026.
The plasmonic superlattices overlaid with optically pumped organic molecules produce multimode lasing due to mid‐range radiative coupling (MR‐RC, lambda) and long‐range radiative coupling (LR‐RC, 10 lambda). Right: The mode locking emerges spontaneously due to the shared excited state molecular populations which may emit photons to various different ...
Janne I. Heikkinen   +6 more
wiley   +1 more source

Nonlinear absorption and scattering of a single plasmonic nanostructure characterized by x-scan technique

open access: yesBeilstein Journal of Nanotechnology, 2019
Nonlinear nanoplasmonics is a largely unexplored research area that paves the way for many exciting applications, such as nanolasers, nanoantennas, and nanomodulators.
Tushar C. Jagadale   +2 more
doaj   +1 more source

Perovskite lasers: From optical pumping to electrical pumping

open access: yesFlexMat, Volume 3, Issue 1, Page 101-116, March 2026.
This review highlights recent progress in perovskite lasers, emphasizing material engineering, cavity design, and lasing mechanisms in halide perovskites. It also discusses advances in continuous‐wave operation and evaluates the prospects for electrically pumped devices, while identifying key challenges that must be addressed to fully realize the ...
Kang Wang   +10 more
wiley   +1 more source

Hybrid gap plasmon GaAs nanolasers [PDF]

open access: yesApplied Physics Letters, 2017
Compact semiconductor lasers with sub-wavelength-scale dimensions rely heavily on materials with low surface recombination due to the large surface area to volume ratios of their nano-cavities. Furthermore, the reliance on semiconductor nanostructures has led to predominantly bottom-up fabrication approaches, which has hindered scalable and practical ...
Ngoc B. Nguyen   +5 more
openaire   +2 more sources

Modelling and Simulation of Plasmonic Waveguides and Nanolasers [PDF]

open access: yes, 2014
: This thesis summarizes modeling and simulation of plasmonic waveguides and nanolasers. The research includes modeling of dielectric constants of doped semiconductor as a potential plasmonic material, simulation of plasmonic waveguides with different ...

core  

Engineering Grain Architecture in Epitaxial Aluminum on Miscut Substrates Toward Various Clean Limits and Giant Superconductivity Modulation

open access: yesSmall, Volume 22, Issue 14, 6 March 2026.
The miscut substrate strategy offers a novel means to engineer aluminum surface roughness, grain architecture, crystallinity, and both normal and superconducting transport properties toward their clean limits by precisely tuning the miscut angle without altering growth conditions.
Thi‐Hien Do   +13 more
wiley   +1 more source

Design of High-Q-Gradient Dielectric Nanoparticle Chain Surface Plasmonic Cavities

open access: yesPhotonics
Surface plasmonic cavities consisting of dielectric nanoparticle chains directly placed on a metal substrate are designed and studied, including a periodic nanoparticle chain (PNC) cavity and several different surface plasmon trap (SPT) cavities. The SPT
Jing Liu   +8 more
doaj   +1 more source

Accelerating Luminescence in Nanostructures: Exploring the Physical Limits and Impact of Ultrafast Emission in Nanoscale Materials

open access: yesAdvanced Photonics Research, Volume 7, Issue 2, February 2026.
This review highlights recent advances in accelerating luminescence in nanostructures through cooperative emission, resonator coupling, and nonlocal light–matter interactions. By unifying concepts such as excitonic superradiance, superfluorescence, and the plasmonic Purcell effect, it reveals physical limits of ultrafast emission and their potential ...
Masaaki Ashida   +3 more
wiley   +1 more source

Plasmonic nanolaser for intracavity spectroscopy and sensorics [PDF]

open access: yesApplied Physics Letters, 2017
We demonstrate intracavity plasmonic laser spectroscopy using a plasmonic laser created from a periodically perforated silver film with a liquid gain medium. An active zone of the laser is formed by a highly elongated spot of pumping. This results in a significantly more efficient diffusive mixing of dye molecules, which suppresses the effect of their ...
P. Melentiev   +15 more
openaire   +2 more sources

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