Results 101 to 110 of about 1,799 (199)

Polariton lasing in Mie-resonant perovskite nanocavity

open access: yesOpto-Electronic Advances
Deeply subwavelength lasers (or nanolasers) are highly demanded for compact on-chip bioimaging and sensing at the nanoscale. One of the main obstacles for the development of single-particle nanolasers with all three dimensions shorter than the emitting ...
Mikhail A. Masharin   +14 more
doaj   +1 more source

Long-term mutual phase locking of picosecond pulse pairs generated by a semiconductor nanowire laser

open access: yesNature Communications, 2017
Although nanolasers have been an active field of research for over a decade, mode-locking on the nanoscale has not been achieved yet. Here, Mayeret al.
B. Mayer   +8 more
doaj   +1 more source

Breakthroughs in Photonics 2014: Advances in Plasmonic Nanolasers

open access: yesIEEE Photonics Journal, 2015
Plasmonic nanolasers are promising as nanoscale coherent sources of optical fields because they support ultrasmall sizes and show ultrafast dynamics. Major advances over the last several years have focused on nanocavity design, materials improvements in ...
Ankun Yang, Teri W. Odom
doaj   +1 more source

Thresholdless quantum dot nanolaser

open access: yesOptics 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

Quantum theory of a spaser-based nanolaser

open access: yesOptics Express, 2014
We present a quantum theory of a spaser-based nanolaser, under the bad-cavity approximation. We find first- and second-order correlation functions $g^{(1)} (τ)$ and $g^{(2)}(τ)$ below and above the generation threshold, and obtain the average number of plasmons in the cavity. The latter is shown to be of the order of unity near the generation threshold,
Parfenyev, Vladimir M.   +1 more
openaire   +3 more sources

Measuring the frequency response of optically pumped metal-clad nanolasers

open access: yes, 2019
We report on our initial attempt to characterize the intrinsic frequency response of metal-clad nanolasers. The probed nanolaser is optically biased and modulated, allowing the emitted signal to be detected using a high-speed photodiode at each ...
Patrick Likamwa (14414352)   +3 more
core   +1 more source

Stochastically sustained population oscillations in high-β nanolasers

open access: yesNew Journal of Physics, 2013
Nonlinear dynamical systems involving small populations of individuals may sustain oscillations in the population densities arising from discrete changes in population numbers due to random events.
A Lebreton   +5 more
doaj   +1 more source

Mesoscopic limit cycles in coupled nanolasers

open access: yes, 2019
Two coupled semiconductor nanolasers exhibit a mode switching transition, theoretically characterized by limit cycle $-$or mode-beating$-$ oscillations. Their decay rate is vanishingly small in the thermodynamic limit, i.e.
El Amili, Abdelkrim   +8 more
core   +2 more sources

A nanolaser with extreme dielectric confinement

open access: yesScience Advances
The interaction between light and matter can be enhanced by spatially concentrating the light field and extending photon dwell time. Plasmonic structures can provide strong light confinement but suffer from ohmic losses. Recent advances in dielectric nanostructures enable strong light localization without metallic losses.
Meng Xiong   +7 more
openaire   +4 more sources

Study of nanolaser optical and structural properties at the nanometer scale [PDF]

open access: yesBIO Web of Conferences
Santini Cléo   +10 more
doaj   +1 more source

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