Results 81 to 90 of about 631 (171)
Anapole nanolasers for mode-locking and ultrafast pulse generation
Nature Communications, 2017 Here, the authors introduce the concept of nanocscale lasers based on a tightly confined anapole mode. Using first-principle calculations they show that the superposition of internal modes can generate radiation-less states that are scattering free ...
Juan S. Totero Gongora +3 more
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Polariton lasing in Mie-resonant perovskite nanocavity
Opto-Electronic AdvancesDeeply 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
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A room temperature continuous-wave nanolaser using colloidal quantum wells
Nature Communications, 2017 Colloidal nanocrystals are a promising material for easy-to-fabricate nanolasers, but suffer from high threshold powers. Here, the authors combine colloidal quantum wells with a photonic-crystal cavity into a stable, continuous-wave room-temperature ...
Zhili Yang +4 more
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Quantum theory of a spaser-based nanolaser
Optics 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
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Long-term mutual phase locking of picosecond pulse pairs generated by a semiconductor nanowire laser
Nature 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
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Breakthroughs in Photonics 2014: Advances in Plasmonic Nanolasers
IEEE 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
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Photonic Crystal Nanolaser Biosensors
IEICE Transactions on Electronics, 2012 High-performance and low-cost sensors are critical devices for high-throughput analyses of bio-samples in medical diagnoses and life sciences. In this paper, we demonstrate photonic crystal nanolaser sensor, which detects the adsorption of biomolecules from the lasing wavelength shift.
Shota Kita +7 more
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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
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Stochastically sustained population oscillations in high-β nanolasers
New 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
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A nanolaser with extreme dielectric confinement
Science AdvancesThe 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