Results 41 to 50 of about 1,100 (191)

Semiconductor Nanolasers

open access: yesIEEE Photonics Journal, 2012
Recent progress in the field of semiconductor nanolasers is discussed. New designs have emerged that eliminate the need for a conventional Fabry–Perot cavity, bringing down the physical dimensions of the lasers below the diffraction limit. Semiconductor nanolasers are critical components for nanophotonics and offer possible integration with Si ...
Saxena, Dhruv   +2 more
openaire   +3 more sources

Non-obstructive intracellular nanolasers [PDF]

open access: yesNature Communications, 2018
AbstractMolecular dyes, plasmonic nanoparticles and colloidal quantum dots are widely used in biomedical optics. Their operation is usually governed by spontaneous processes, which results in broad spectral features and limited signal-to-noise ratio, thus restricting opportunities for spectral multiplexing and sensing.
Alasdair H. Fikouras   +6 more
openaire   +5 more sources

Rancang Bangun Sistem Diagnosis dan Terapi Terpadu Kanker Kulit Ekonomis dan Non-Invasive Berbasis Nanolaser Speckle Imaging [PDF]

open access: yes, 2012
Metode diagnosis dan terapi medis kanker kulit yang dilakukan selama ini merupakan dua metode yang terpisah dan bersifat invasive. Dalam penelitian ini di kaji dan didesain suatu sistem diagnosis dan terapi kanker kulit terpadu berbasis nanolaser speckle
Sri Hartati   +7 more
core   +3 more sources

Design of a waveguide-coupled nanolaser for photonic integration

open access: yes, 2013
Semiconductor nanolasers with metallo-dielectric cavities are considered as promising light sources for ultra-dense photonic integration.
Heiss, D.   +7 more
core   +2 more sources

Zero Crosstalk Regime Direct Modulation of Mutually Coupled Nanolasers

open access: yesIEEE Photonics Journal, 2017
The modulation properties of dually modulated mutually coupled nanolasers have been analysed using rate equations which include the Purcell cavity-enhanced spontaneous emission factor F and the spontaneous emission coupling factor β.
Hong Han, K. Alan Shore
doaj   +1 more source

Green and Scalable Synthesis of Efficient and Stable CsPbBr3 Perovskite Quantum Dots Enables Low‐Threshold Amplified Spontaneous Emission

open access: yesAdvanced Science, EarlyView.
Green and scalable synthesis of CsPbBr3 perovskite quantum dots using bio‐sourced lecithin and hexane enables single‐batch production over 10 grams. Suppressed Auger recombination and electron‐phonon coupling yields 95% PLQY, enhanced stability, and low ASE thresholds of 230.4 (ns) and 50.1 (fs) µJ cm−2 in neat films. ABSTRACT Halide perovskite quantum
Yongfeng Liu   +10 more
wiley   +1 more source

Side‐DBR Guided Exciton‐Polariton Lasing With Near‐Field Mode Imaging in an InGaN Thin‐Film Ridge Waveguide

open access: yesLaser &Photonics Reviews, EarlyView.
Room‐temperature lower‐polariton‐like lasing is realized in an InGaN/GaN thin‐film ridge cavity with lateral distributed Bragg reflectors. Near‐field optical microscopy distinguishes the transverse side‐DBR‐confined mode from a longitudinal photon‐like mode, while simulations reproduce their spatial profiles.
Wai Yuen Fu   +2 more
wiley   +1 more source

Perovskite nanowire lasers on low-refractive-index conductive substrate for high-Q and low-threshold operation

open access: yesNanophotonics, 2020
Over the last five years, inorganic lead halide perovskite nanowires have emerged as prospective candidates to supersede standard semiconductor analogs in advanced photonic designs and optoelectronic devices.
Markina Daria I.   +10 more
doaj   +1 more source

A Low-Threshold Miniaturized Plasmonic Nanowire Laser with High-Reflectivity Metal Mirrors

open access: yesNanomaterials, 2020
A reflectivity-enhanced hybrid plasmonic GaAs/AlGaAs core-shell nanowire laser is proposed and studied by 3D finite-difference time-domain simulations.
Jiahui Zheng   +6 more
doaj   +1 more source

Arbitrary Wavefront Manipulation in Real Space and Momentum Space Based on Elliptical Structures

open access: yesNanophotonics, Volume 15, Issue 19, 13 October 2026.
Leveraging elliptical structures—while preserving real space arbitrary wavefront manipulation—we generalize the manipulation to momentum space rather than only sustaining topological singularities. Multifunctional integrated outputs, such as beam deflection and focusing, can be flexibly achieved in the near–infrared communication band, and the ...
Siqi Chang   +4 more
wiley   +1 more source

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