Results 81 to 90 of about 1,100 (191)

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

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

Photonic Crystal Nanolaser Biosensors

open access: yesIEICE Transactions on Electronics, 2012
High-performance and low-cost sensors are critical devices for high-throughput analyses of bio-samples in medical diagnoses and life sciences. In this paper, we demonstrate photonic crystal nanolaser sensor, which detects the adsorption of biomolecules from the lasing wavelength shift.
Shota Kita   +7 more
openaire   +1 more source

Biosensors for Biotoxins Detection and Monitoring

open access: yesAdvanced Sensor Research, Volume 5, Issue 6, June 2026.
This review examines state‐of‐the‐art biosensing platforms for biotoxin detection, including antibody‐, aptamer‐, CRISPR‐, nanopore‐, whole cells‐ and MIP‐based sensors. It highlights advances in ultra‐sensitive detection, real‐matrix validation in food and water, and multiplexed analysis, and discusses how the integration with machine learning ...
Alissa Agerova   +2 more
wiley   +1 more source

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

Ultrahigh Purcell factor in low-threshold nanolaser based on asymmetric hybrid plasmonic cavity [PDF]

open access: yes, 2016
A low-threshold nanolaser with all three dimensions at the subwavelength scale is proposed and investigated. The nanolaser is constructed based on an asymmetric hybrid plasmonic F-P cavity with Ag-coated end facets.
Yan, Xin, Wei, Wei, Zhang, Xia
core   +1 more source

Dipole‐Quadrupole Model and Multipole Analysis of Resonant Membrane Metasurfaces

open access: yesLaser &Photonics Reviews, Volume 20, Issue 12, 18 June 2026.
Membrane metasurfaces, arrays of holes in a dielectric membrane, are appealing because they require no substrate and allow access to resonant near‐fields. However, developing a comprehensive theoretical description for them remains challenging. We introduce a semi‐analytical dipole‐quadrupole approach to analyze their resonant spectra at arbitrary ...
Izzatjon Allayarov   +2 more
wiley   +1 more source

Semi-Classical Analysis and Design of Quantum dot Based Electrically Pumped plasmonic nanolaser

open access: yes, 2018
Recently there is an increasing attention to electrically pumped room temperature sub-wavelength plasmon sources because of their various potential applications mainly in the integrated plasmonic field.
Hamed Ghodsi (17494380)   +2 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   +3 more sources

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