Results 41 to 50 of about 595 (151)
Perovskite lasers: From optical pumping to electrical pumping
FlexMat, EarlyView.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
Laser &Photonics Reviews, EarlyView.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-field switching of nanolasers
APL Photonics, 2020 Due to their small sizes and low threshold, nanolasers play a pivotal role in the field of low-energy scalable photonic technologies. High-speed modulation of nanolasers is needed for their application in data communication, but its implementation has ...
Daniele Pellegrino +6 more
doaj +1 more source
Efficient First‐Principles Inverse Design of Nanolasers
Laser &Photonics Reviews, EarlyView.This article introduces a first‐principles inverse‐design framework for nanolasers that directly incorporates nonlinear lasing physics. By unifying steady‐state ab‐initio laser theory (SALT) with topology optimization, it reveals how spatial hole burning, gain saturation, and cavity‐emitter coupling shape laser performance, enabling efficient discovery
Beñat Martinez de Aguirre Jokisch +5 more
wiley +1 more source
Controlling the gain contribution of background emitters in few-quantum-dot microlasers
New Journal of Physics, 2018 We provide experimental and theoretical insight into single-emitter lasing effects in a quantum dot (QD)-microlaser under controlled variation of background gain provided by off-resonant discrete gain centers.
F Gericke +11 more
doaj +1 more source
Stabilizing nanolasers via polarization lifetime tuning
Scientific 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
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“Amplified Spontaneous Emission” in Micro- and Nanolasers
Atoms, 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
Thresholdless quantum dot nanolaser
Optics Express, 2017 Thresholdless lasing is an outstanding challenge in laser science and is achievable only in devices having near unity quantum efficiency even when not lasing. Such lasers are expected to exhibit featureless linear light output curves. However, such thresholdless behavior hinders identification of the laser transition, triggering a long-lasting argument
Yasutomo, Ota +4 more
openaire +2 more sources
Mode‐Locked Pulse Generation in Plasmonic Lattices
Laser &Photonics Reviews, EarlyView.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
Dipole‐Quadrupole Model and Multipole Analysis of Resonant Membrane Metasurfaces
Laser &Photonics Reviews, EarlyView.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