Results 51 to 60 of about 1,799 (199)
Arbitrary Wavefront Manipulation in Real Space and Momentum Space Based on Elliptical Structures
Leveraging elliptical structures—while preserving real space arbitrary wavefront manipulation—we generalize the manipulation to momentum space rather than only sustaining topological singularities. Multifunctional integrated outputs, such as beam deflection and focusing, can be flexibly achieved in the near–infrared communication band, and the ...
Siqi Chang +4 more
wiley +1 more source
Self-Assembled Dipole Nanolasers
Visible light excitation of silver nanoparticles in the presence of polymerizable monomers and selected dyes triggers the self-assembly of nanolasers in a synthetically simple process. The new nanolasers incorporate a thin, fully organic gain medium that
Juan C. Scaiano (1356747) +2 more
core +1 more source
A "dipole" laser is proposed consisting of a nanoparticle and a two-level system with population inversion. If the threshold conditions are fulfilled, the dipole interaction between the two-level system and the nanoparticle leads to coherent oscillations in the polarization of the particles, even in the absence of an external electromagnetic ...
I. E. Protsenko +4 more
openaire +3 more sources
Semiconductor and perovskite quantum dots in nanolaser technologies (mini-review)
The mini-review analyzes experimental and theoretical researches and applied applications of nanolasers based on semiconductor and perovskite quantum dots.
S.I. Pokutnii, T.Yu. Gromovoy
doaj +1 more source
High-speed on-chip light sources at the nanoscale
Following a similar trend in the scaling of electronic integrated circuits (ICs), the downscaling of optical sources promises revenues such as higher energy efficiency and faster operation speed in photonic ICs.
Xi Li, Qing Gu
doaj +1 more source
Rolling‐enabled transfer printing introduces mechanical orientation as a new degree of freedom for heterogeneous silicon photonics. A conventional TE‐like photonic‐crystal nanobeam laser is mechanically rotated by 90° to selectively couple with the TM‐like mode of a silicon waveguide, enabling polarization‐diverse functionality without redesigning the ...
Byoung Jun Park +8 more
wiley +1 more source
ZnO nanolasers on graphene films
We grew and characterized zinc oxide (ZnO) nanolasers on graphene films. By using graphene as a growth medium, we were able to prepare position-controlled and vertically aligned ZnO nanotube lasers.
현가담
core +1 more source
Controlling the gain contribution of background emitters in few-quantum-dot microlasers
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
Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades +7 more
wiley +1 more source
Fundamental Properties of Metallic Nanolasers [PDF]
The last two decades have witnessed tremendous advancements in the area of nanophotonics and plasmonics, which has helped propel the development of integrated photonic sources.
Hayenga, William
core

