Results 61 to 70 of about 1,799 (199)

“Amplified Spontaneous Emission” in Micro- and Nanolasers

open access: yesAtoms, 2021
Amplified Spontaneous Emission is ubiquitous in systems with optical gain and is responsible for many opportunities and shortcomings. Its role in the progression from the simplest form of thermal radiation (single emitter spontaneous emission) all the ...
Gian Luca Lippi
doaj   +1 more source

High‐Power Continuous‐Wave Optical Waveguiding in a Semiconductor Nanowire

open access: yesAdvanced Photonics Research, Volume 7, Issue 9, September 2026.
An in‐line fiber–nanowire–fiber configuration provides efficient coupling of 1550 nm continuous‐wave light into and out of a single CdS nanowire. The output power increases linearly with input power, reaching 1.8 W and corresponding to a guided power of 2.5 W, demonstrating watt‐level continuous‐wave optical waveguiding in a subwavelength semiconductor
Hongliang Dang   +5 more
wiley   +1 more source

Hybrid gap plasmon GaAs nanolasers [PDF]

open access: yes, 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.
Nielsen, M.P.   +11 more
core   +1 more source

Multiple Bound States in the Continuum in Deep‐Subwavelength Nonlocal Polar Dielectric Nanoparticles

open access: yesNanophotonics, Volume 15, Issue 15, 13 August 2026.
Spatial dispersion in polar‐dielectric core–shell nanoparticles enable multiple deep‐subwavelength bound states in the continuum through longitudinal‐transverse hybrid modes. By suppressing radiative damping at finite geometrical parameters, these nonlocality‐induced BICs provide a compact platform for high Q light confinement, enhanced light–matter ...
Man Lin   +6 more
wiley   +1 more source

Stabilizing nanolasers via polarization lifetime tuning

open access: yesScientific Reports, 2021
We investigate the emission dynamics of mutually coupled nanolasers and predict ways to optimize their stability, i.e., maximize their locking range.
Aycke Roos   +2 more
doaj   +1 more source

Tunable Unidirectional Guided Resonances via Multi‐Singularity Interactions in Momentum Space

open access: yesNanophotonics, Volume 15, Issue 15, 13 August 2026.
C points can intrinsically coexist around symmetry‐protected BICs without symmetry reduction. Symmetry breaking splits SP‐BICs into new C points that interact with intrinsic ones, forming perfect UGRs at distinct k points with tunable topological charges.
Ying Yu   +5 more
wiley   +1 more source

Plasmonic Bowtie Nanolaser Arrays [PDF]

open access: yesNano Letters, 2012
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 demonstrated to date. We present a new design for a room-temperature nanolaser based on three-dimensional (3D)
Jae Yong, Suh   +6 more
openaire   +2 more sources

Quantum Modelling and Photon Squeezing in Nanolasers Quantum Modelling and Photon Squeezing in Nanolasers

open access: yes, 2022
International audienceWe present a quantum mechanical theory that solves the issue of threshold in nanolasers by including coherent and incoherent emission effects above and below threshold.
Oppo, G.-L   +4 more
core  

Dissipative Josephson effect in coupled nanolasers

open access: yes, 2020
Josephson effects are commonly studied in quantum systems in which dissipation or noise can be neglected or do not play a crucial role. In contrast, here we discuss a setup where dissipative interactions do amplify a photonic Josephson current, opening a
Samuel Fernández-Lorenzo (16232180)   +1 more
core   +1 more source

Wavelength and Pulsewidth Tunable Flexible CsPbBr3 Perovskite Microlasers by Mechanical Stress Modulation

open access: yesAdvanced Electronic Materials, Volume 12, Issue 15, 10 August 2026.
Mechanically tunable all‐organic CsPbBr3 perovskite microlasers on a flexible PET substrate is demonstrated, enabling simultaneous wavelength and pulsewidth modulation of laser emission. The strain–photon synergetic coupling mechanism is revealed.
Zhaohuan Cai   +6 more
wiley   +1 more source

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