Results 51 to 60 of about 3,684 (206)
High-Dimensional Quantum Key Distribution by a Spin-Orbit Microlaser
Physical Review XQuantum 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
Physical 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
Flying Particle Microlaser and Temperature Sensor in Hollow-Core Photonic Crystal Fiber
, 2017 Whispering-gallery mode (WGM) resonators combine small optical mode volumes with narrow resonance linewidths, making them exciting platforms for a variety of applications. Here we report a flying WGM microlaser, realized by optically trapping a dye-doped
Pennetta, Riccardo +3 more
core +1 more source
Photon‐Sphere Modes in Curved Optical Microcavities: A Black‐Hole Analogue Laser
Advanced Science, EarlyView.An optical analogue of a Schwarzschild black hole is realized using curved microcavities that preserve light‐like geodesics. A new family of laser modes confined around the photon sphere is identified alongside conventional whispering‐gallery modes. Analytical theory, numerical simulations, and experiments reveal curvature‐induced confinement, enabling
Chenni Xu +9 more
wiley +1 more source
Reconfigurable symmetry-broken laser in a symmetric microcavity
Nature 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
Intracavity dynamics-based gain-assisted sensing with microtubule Raman microlaser
APL Photonics, 2023 Microcavity lasers show excellent performance as a miniaturized microsensor in various applications. However, their relatively weak power may be easily submerged in system noises and disturbed by environmental fluctuations, rendering them ineffective at ...
Mingfang Li +3 more
doaj +1 more source
Electrically pumped 1550 nm single mode III-V-on-silicon laser with resonant grating cavity mirrors [PDF]
, 2015 This article presents a novel III-V on silicon laser. This work exploits the phenomenon that a passive silicon cavity, side-coupled to a III-V waveguide, will provide high and narrow-band reflectivity into the III-V waveguide: the resonant mirror.
Baets, Roel +2 more
core +1 more source
Fluorene‐based blue emitters: On the path to electrically pumped organic lasers
FlexMat, EarlyView.Electrically pumped efficient operation remains unrealized, a major challenge in optoelectronics. Fluorene‐based blue‐emitting semiconductors are promising gain media, thanks to their structural tunability and favorable emission properties. This review summarizes recent advances, highlights their reliability and versatility in lasing, and outlines key ...
Yong Yan +7 more
wiley +1 more source
Optical Frequency Comb Generation in Highly Nonlinear Fiber With Dual-Mode Square Microlasers
IEEE Photonics Journal, 2018 Optical frequency comb (OFC) generation based on four-wave mixing in highly nonlinear fiber (HNLF) is investigated using dual-transverse-mode square microlaser as a seed source.
Hai-Zhong Weng +6 more
doaj +1 more source
Low threshold Er³⁺/Yb³⁺ co-doped microcavity laser [PDF]
, 2010 An Erbium:Ytterbium codoped microcavity-based laser which is lithographically fabricated from sol-gel is demonstrated. Both single-mode and multimode lasing is observed in the C band (1550nm).
Armani, Andrea M. +2 more
core +1 more source