Results 71 to 80 of about 2,407 (159)

Heterogeneous Integration of Multi‐Band Mode‐Locked and Single‐Mode Lasers on an Extended Commercial SiN Platform

Laser &Photonics Reviews, EarlyView.
Micro‐transfer printing enables GaAs and InP gain materials to be integrated on a commercial silicon nitride photonic platform. The resulting chip supports O‐ and C‐band comb and single‐mode lasers, demonstrating a scalable route toward multi‐material, multi‐wavelength, and multifunctional integrated light sources.
Dongbo Wang, Tom Reep, Thi Ngoc Lam Tran, Stijn Poelman, Jing Zhang, Jose Carreira, Camiel Op de Beeck, Stijn Cuyvers, Michael Geiselmann, Maximilien Billet, Dries Van Thourhout, Gunther Roelkens, Bart Kuyken   +12 more
wiley   +1 more source

28 THz soliton frequency comb in a continuous-wave pumped fiber Fabry–Pérot resonator

APL Photonics
We report the generation of an optical frequency comb featuring a 28 THz bandwidth, sustained by a single 80 fs cavity soliton recirculating in a fiber Fabry–Pérot resonator.
T. Bunel, M. Conforti, Z. Ziani, J. Lumeau, A. Moreau, A. Fernandez, O. Llopis, G. Bourcier, A. Mussot   +8 more
doaj   +1 more source

Experimental Demonstration of Thermally Tunable Fano and EIT Resonances in Coupled Resonant System on SOI Platform

IEEE Photonics Journal, 2018
Thermally tunable Fano and electromagnetically induced transparency (EIT) resonances are theoretically and experimentally demonstrated based on a Mach–Zehnder interferometer assisted Bragg grating-microring coupled resonant system on silicon-on ...
Zecen Zhang, Geok Ing Ng, Ting Hu, Haodong Qiu, Xin Guo, Wanjun Wang, Mohamed Said Rouifed, Chongyang Liu, Jiaxu Sia, Jin Zhou, Callum G. Littlejohns, Milos Nedeljkovic, Graham T. Reed, Hong Wang   +13 more
doaj   +1 more source

Wavefront Shaping for Optimal Extinction of Focused Light by Individual Nanoscatterers

Laser &Photonics Reviews, EarlyView.
Wavefront shaping enables near‐complete optical extinction by nanoscatterers separated from a planar reflector. Time‐reversed emission profiles provide optimal illumination conditions, yielding 70% extinction from a single plasmonic nanoparticle and up to 90% from sub‐wavelength nanoparticle clusters, offering a promising route to efficient in‐ and out‐
Nick Feldman, Joris Pals, Arie J. den Boef, F. Javier García de Abajo, Lyubov V. Amitonova, A. Femius Koenderink   +5 more
wiley   +1 more source

Complex Permittivity Measurements with Quasioptical Fabry-Pérot Resonators [PDF]

EPJ Web of Conferences
As millimeter instrumentalists push the precision and mapping speed of their instruments ever-higher to make ever-deeper measurements, the need for a precise understanding of the complex permittivity of the dielectrics used in these instruments at their ...
Elwood B. D., Grimes P. K., Kovac J. M.
doaj   +1 more source

Time‐Modulated Optomechanics Reveal Energy Flow and Inelastic Interactions Between Acoustic Phonons in Nanomembranes

Laser &Photonics Reviews, EarlyView.
Temporal interfaces are abrupt refractive index changes used in time‐varying optics, but also transitions to nonequilibrium states. This work explores the inelastic scattering of time‐varying light by nonthermal acoustic phonons in the vicinity of temporal interfaces.
Anuj Kumar Dhiman, Piotr Graczyk, Tobias Held, Mikolaj Pochylski, Kleoniki Sympoura, Rafal Bialek, Jacek Gapinski, Bahram Djafari Rouhani, Baerbel Rethfeld, Bartlomiej Graczykowski, Thomas Vasileiadis   +10 more
wiley   +1 more source

Transmission‐Mode Silicon‐Rich Nitride Mie‐Void Metasurfaces in the Visible

Laser &Photonics Reviews, EarlyView.
Transmission‐mode Mie‐void metasurfaces are demonstrated in silicon‐rich nitride, where localized void resonances hybridize with slab‐guided and Fabry–Pérot‐like modes in a finite film, producing a quantified avoided crossing between coupled modes. Controlled void depth tunes the visible transmission spectrum, enabling structural color and spatial ...
Oren Goldberg, Noa Mazurski, Uriel Levy
wiley   +1 more source

Brillouin-induced Kerr frequency comb in normal dispersion fiber Fabry Perot resonators

Nature Communications
We report the generation of a stable, broadband frequency comb, covering more than 10 THz, using a dispersion fiber Fabry-Perot resonator with a high quality factor of 69 millions.
Thomas Bunel, Julien Lumeau, Antonin Moreau, Arnaud Fernandez, Olivier Llopis, Germain Bourcier, Auro M. Perego, Matteo Conforti, Arnaud Mussot   +8 more
doaj   +1 more source

Integration of III‐V Quantum Dot Photonic Devices on Silicon Nitride via Lithography‐Aligned Micro‐Transfer Printing

Laser &Photonics Reviews, EarlyView.
Lithography‐aligned micro‐transfer printing integrates unprocessed InAs/GaAs quantum dot membranes with silicon nitride photonic circuits. Post‐transfer patterning defines quantum dot photonic devices directly on the target chip, enabling precise GaAs–SiNx coupling, purcell‐enhanced single photon emission, and scalable on‐chip routing and correlation ...
Xuebin Peng, Jiawei Yang, Wentao Ma, Zihao Liu, Xuan Pu, Ying Yu, Siyuan Yu   +6 more
wiley   +1 more source