Results 21 to 30 of about 1,607 (199)

Room-temperature continuous-wave upconverting micro- and nanolasing for bio-optofluidics [PDF]

EPJ Web of Conferences, 2020
Nanolasers that operate under the continuous-wave pump and are robust in diverse environments will make possible compact optoelectronic devices, biomedical imaging, and large-scale quantum photonics.
Fernandez-Bravo Angel, Moscardi Liliana, Ross Aaron M., Lanzani Guglielmo, Chan Emory M., Odom Teri W., James Schuck P., Scotognella Francesco   +7 more
doaj   +1 more source

Plasmon Enhancement Reveals Origin of the Dark States of Photoluminescence Intermittency in Quantum Dots. [PDF]

Nanophotonics
ABSTRACT Dark states of photoluminescence (PL) intermittency in colloidal quantum dots (QDs) interrupt PL emission and significantly reduce emission intensity, severely hindering QD applications. However, the origin of dark states remains ambiguous due to their extremely low intensity, which impedes the development of effective suppression strategies ...
Li J, Chen Z, Zhang G, Li B, Yang C, Guo W, Han X, Wang C, Ying Z, Wang J, Chen R, Qin C, Hu J, Xiao L, Jia S.   +14 more
europepmc   +2 more sources

Metallic coaxial nanolasers [PDF]

Advances in Physics: X, 2016
The last two decades have witnessed tremendous advancements in the area of nanophotonics and plasmonics. Undoubtedly, the introduction of metallic structures has opened a path towards light confinement and manipulation at the subwavelength scale { a regime that was previously thought to be out of reach in optics.
Hayenga, William E., Garcia-Gracia, Hipolito, Hodaei, Hossein, Fainman, Yeshaiahu, Khajavikhan, Mercedeh   +4 more
openaire   +3 more sources

Recent Progress in on-Demand Transfer-Enabled Integration of Wavelength-Scale Light Sources. [PDF]

Nanophotonics
A novel integration technology using micro‐transfer‐printing, demonstrating individually and selectively addressable pick‐up of a microlaser on a growth wafer and on‐demand integration at a predetermined location on the compact PIC chip. ABSTRACT The growing demand for massive and high‐speed data processing within compact photonic circuits has ...
Kim H, Shin D, Bae GY, Lee GW, Jung HY, So JP, Kim MK, No YS.   +7 more
europepmc   +2 more sources

Brain-inspired nanophotonic spike computing: challenges and prospects

Neuromorphic Computing and Engineering, 2023
Nanophotonic spiking neural networks (SNNs) based on neuron-like excitable subwavelength (submicrometre) devices are of key importance for realizing brain-inspired, power-efficient artificial intelligence (AI) systems with high degree of parallelism and ...
Bruno Romeira, Ricardo Adão, Jana B Nieder, Qusay Al-Taai, Weikang Zhang, Robert H Hadfield, Edward Wasige, Matěj Hejda, Antonio Hurtado, Ekaterina Malysheva, Victor Dolores Calzadilla, João Lourenço, D Castro Alves, José M L Figueiredo, Ignacio Ortega-Piwonka, Julien Javaloyes, Stuart Edwards, J Iwan Davies, Folkert Horst, Bert J Offrein   +19 more
doaj   +1 more source

Les nanolasers [PDF]

Reflets de la physique, 2010
Lorsque les dimensions des lasers deviennent submicroniques, la physique qui gouverne leur fonctionnement est modifiee : les effets quantiques sont alors preponderants et le role joue par l’emission spontanee devient tres important, non seulement au passage du seuil, mais aussi en regime d’emission stimulee.
Izo Abram, Alexios Beveratos, Isabelle Robert-Philip   +2 more
openaire   +1 more source

Single-Mode Emission by Phase-Delayed Coupling Between Nanolasers. [PDF]

ACS Photonics
Near-field coupling between nanolasers enables collective high-power lasing but leads to complex spectral reshaping and multimode operation, limiting the emission brightness, spatial coherence, and temporal stability.
Raziman TV, Fischer A, Nori R, Chan A, Ng WK, Saxena D, Hess O, Molkens K, Tanghe I, Geiregat P, Van Thourhout D, Barahona M, Sapienza R.   +12 more
europepmc   +3 more sources

Zero Crosstalk Regime Direct Modulation of Mutually Coupled Nanolasers

IEEE Photonics Journal, 2017
The modulation properties of dually modulated mutually coupled nanolasers have been analysed using rate equations which include the Purcell cavity-enhanced spontaneous emission factor F and the spontaneous emission coupling factor β.
Hong Han, K. Alan Shore
doaj   +1 more source

Quantum Langevin approach for superradiant nanolasers

New Journal of Physics, 2021
A new approach for analytically solving quantum nonlinear Langevin equations is proposed and applied to calculations of spectra of superradiant lasers where collective effects play an important role.
Igor E Protsenko, Alexander V Uskov, Emil C André, Jesper Mørk, Martijn Wubs   +4 more
doaj   +1 more source

Lasing Threshold in Nanolasers with Extreme Dielectric Confinement

, 2023
Nanolasers based on emerging dielectric cavities with deep sub-wavelength optical confinement may offer an unprecedented light-matter coupling rate, near-unity spontaneous emission factor, and ultra-low threshold current.
Yu, Yi, Saldutti, Marco, Mørk, Jesper
core   +1 more source