Results 31 to 40 of about 1,107 (175)

Mode-switching induced super-thermal bunching in quantum-dot microlasers

open access: yesNew Journal of Physics, 2016
The super-thermal photon bunching in quantum-dot (QD) micropillar lasers is investigated both experimentally and theoretically via simulations driven by dynamic considerations.
Christoph Redlich   +10 more
doaj   +1 more source

Gold nanorod plasmonic upconversion microlaser [PDF]

open access: yes14th IEEE International Conference on Nanotechnology, 2013
Plasmonic-photonic interactions have stimulated significant interdisciplinary interest, leading to rapid innovations in solar design and biosensors. However, the development of an optically pumped plasmonic laser has failed to keep pace due to the difficulty of integrating a plasmonic gain material with a suitable pump source.
Ce, Shi   +2 more
openaire   +2 more sources

Stable organic self-assembled microwire lasers for chemical vapor sensing

open access: yesCommunications Chemistry, 2021
Organic microlaser sensors are highly promising for chemical vapor detection due to their chemical versatility, but their poor stabilities are hampering applications.
Zheming Chen   +4 more
doaj   +1 more source

Er3+ doped tellurite whispering gallery mode microlasers in 1.5 μm–1.61 μm wavelength region generated by 0.98 μm and 1.48 μm pump lasers

open access: yesOptical Materials: X, 2023
In this paper, we demonstrate Er3+ doped tellurite single and multi-mode microlasers in 1.5 μm–1.6 μm wavelength range fabricated via the plasma torch method.
Snigdha Thekke Thalakkal   +7 more
doaj   +1 more source

Controlling the gain contribution of background emitters in few-quantum-dot microlasers

open access: yesNew 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

Lead halide perovskite vortex microlasers

open access: yesNature Communications, 2020
Integration of III-V semiconductor microlasers into modern Si or Si3N4 based photonic integrated circuits remains a challenge. Here, the authors demonstrate a perovskite vortex microlaser with highly directional outputs and well-controlled topological ...
Wenzhao Sun   +8 more
doaj   +1 more source

High-Dimensional Quantum Key Distribution by a Spin-Orbit Microlaser

open access: yesPhysical Review X
Quantum key distribution offers a promising avenue for establishing secure communication networks. However, its performance is significantly hampered by the conventional two-level information carriers (i.e., qubits) due to their limited information ...
Yichi Zhang   +5 more
doaj   +1 more source

Condensation of thresholds in multimode microlasers

open access: yesPhysical Review A, 2017
We show from ab initio laser theory that by choosing an appropriate spatial pump profile, many different spatial modes of a typical microlaser can be turned on at the same pump energy, substantially increasing the number, N, of simultaneous lasing modes.
Ge, Li, Cao, Hui, Stone, A. Douglas
openaire   +3 more sources

Stress Accumulation Induced by Ion Exchange for Synchronous Modulation of Mode and Wavelength in Microlasers

open access: yesAdvanced Science, EarlyView.
This work demonstrates a paradigm‐shifting strategy to simultaneously achieve broadband wavelength tunability and single‐mode control within a single perovskite microwire structure. Using a facile heating‐assisted solid–solid anion‐exchange strategy, we synthesized phase‐pure CsPbClxBr3‐x microwires that exhibit the widest reported continuous lasing ...
Bingwang Yang   +7 more
wiley   +1 more source

Reconfigurable symmetry-broken laser in a symmetric microcavity

open access: yesNature Communications, 2020
The directional lasing emission in whispering gallery microcavities typically resorts to breaking the structure symmetry. Here the authors demonstrate a reconfigurable symmetry-broken microlaser in a symmetric ultrahigh-Q whispering gallery microcavity ...
Qi-Tao Cao   +7 more
doaj   +1 more source

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