Results 81 to 90 of about 1,014 (194)

Low-threshold plasmonic nanolaser structure based on coupled nanowires

open access: yes, 2011
A novel type of plasmonic nanolaser based on coupled nanowires consisting of a gain material and a core/shell metal/dielectric nanowire is proposed. It shows the potential to enable deep-subwavelength lasing with low pump thresholds.
Tao Zhou   +9 more
core   +1 more source

A room temperature continuous-wave nanolaser using colloidal quantum wells

open access: yesNature Communications, 2017
Colloidal nanocrystals are a promising material for easy-to-fabricate nanolasers, but suffer from high threshold powers. Here, the authors combine colloidal quantum wells with a photonic-crystal cavity into a stable, continuous-wave room-temperature ...
Zhili Yang   +4 more
doaj   +1 more source

Metal-Cavity Nanolasers and NanoLEDs

open access: yesIEICE Transactions on Electronics, 2012
We present the theory and experiment of metal-cavity nanolasers and nanoLEDs flip-chip bonded to silicon under electrical injection at room temperature. We first review the recent progress on microand nanolasers. We then present the design rule and our theoretical model.
CHUANG, Shun Lien   +3 more
openaire   +1 more source

Photonic crystal point-shift nanolaser with ultimate small modal volume

open access: yes, 2005
A photonic crystal nanolaser consisting of only the shift of two lattice points was fabricated by HJ/Xe inductively coupled plasma etching. The room temperature lasing was observed by photopumping.
Nozaki K   +5 more
core  

Emission dynamics and spectrum of a nanoshell-based plasmonic nanolaser spaser

open access: yesNanophotonics
We study theoretically the emission and lasing properties of a single nanoshell spaser nanoparticle with an active core and a plasmonic metal shell. Using time-dependent equations for the gain medium and metal, we calculate the lasing threshold through ...
Aradian Ashod   +6 more
doaj   +1 more source

Plasmon Enhancement Reveals Origin of the Dark States of Photoluminescence Intermittency in Quantum Dots

open access: yesNanophotonics, Volume 15, Issue 2, 27 January 2026.
ABSTRACT Dark states of photoluminescence (PL) intermittency in colloidal quantum dots (QDs) interrupt PL emission and significantly reduce emission intensity, severely hindering QD applications. However, the origin of dark states remains ambiguous due to their extremely low intensity, which impedes the development of effective suppression strategies ...
Jialu Li   +14 more
wiley   +1 more source

Nanolaser arrays: toward application-driven dense integration

open access: yesNanophotonics, 2020
The past two decades have seen widespread efforts being directed toward the development of nanoscale lasers. A plethora of studies on single such emitters have helped demonstrate their advantageous characteristics such as ultrasmall footprints, low power
Deka Suruj S.   +3 more
doaj   +1 more source

Self‐Catalyzed AlGaAs Nanowires and AlGaAs/GaAs Axial Heterostructures Grown by Molecular Beam Epitaxy

open access: yesAdvanced Materials Interfaces, Volume 13, Issue 1, 7 January 2026.
Following the parameter modulation described in the manuscript, a high yield of branch‐free self‐catalyzed AlGaAs nanowires at various nominal Al contents with high material quality has been acquired. These branchless structures are ideal hosts for narrower bandgap GaAs quantum dots, promising for non‐classical light‐emitting applications.
Giorgos Boras   +15 more
wiley   +1 more source

Plasmonic Bowtie Nanolaser Arrays

open access: yes, 2016
Plasmonic lasers exploit strong electromagnetic field confinement at dimensions well below the diffraction limit. However, lasing from an electromagnetic hot spot supported by discrete, coupled metal nanoparticles (NPs) has not been explicitly ...
Chul Hoon Kim (460996)   +6 more
core   +1 more source

Room temperature continuous wave operation and controlled spontaneous emission in ultrasmall photonic crystal nanolaser [PDF]

open access: yes
Photonic crystal slab enables us to form an ultrasmall laser cavity with a modal volume close to the diffraction limit of light. However, the thermal resistance of such nanolasers, as high as 10^6 K/W, has prevented continuous-wave operation at room ...
Nozaki, Kengo   +2 more
core   +2 more sources

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