Results 181 to 190 of about 27,154 (242)

Double-layer metasurface-based edge coupler for low-loss coupling between optical fiber and thin-film lithium niobate photonic chip. [PDF]

Sci Rep
Zou X, Li H, Choi DY, Kim JT, Lee SS.
europepmc   +1 more source

Dispersion‐Less Dissipative Soliton Fiber Laser

Laser &Photonics Reviews, EarlyView.
A dispersion‐less fiber laser architecture generates high‐energy, pedestal‐free picosecond pulses without resorting to conventional pulse stretching. This energy‐managed laser achieves remarkable flexibility in pulse parameters, delivering up to 0.54 μJ$\mathrm{\mu}\mathrm{J}$ pulses with minimal spectral distortion using standard telecom components ...
Mostafa I. Mohamed, Aurélien Coillet, Philippe Grelu   +2 more
wiley   +1 more source

Far-field phonon coupling in valley metamaterial circuits. [PDF]

Nat Commun
Huang Y, Yuan W, Guo Z, Wang Q, Zhang Y, Zhou Y, Pan Y, Zhou J, Wright OB, Zhong Z, Zhao J.   +10 more
europepmc   +1 more source

Pulse Generation by On‐Chip Dispersion Compensation at 8 µm Wavelength

Laser &Photonics Reviews, EarlyView.
This work demonstrates on‐chip pulse generation at 8 μm$\mathrm{\mu}\mathrm{m}$ using chirped Bragg gratings in SiGe graded‐index photonic circuits to compensate the quadratic phase of quantum cascade laser frequency combs. With this approach pulses as short as 1.39 ps were produced, close to the transform limit, representing a key step toward compact,
Annabelle Bricout, Mathieu Bertrand, Philipp Täschler, Barbara Schneider, Victor Turpaud, Stefano Calcaterra, Davide Impelluso, Marco Faverzani, David Bouville, Jean‐René Coudevylle, Samson Edmond, Etienne Herth, Carlos Alonso‐Ramos, Laurent Vivien, Jacopo Frigerio, Giovanni Isella, Jérôme Faist, Delphine Marris‐Morini   +17 more
wiley   +1 more source

Two-optical-cycle pulses from nanophotonic two-color soliton compression. [PDF]

Light Sci Appl
Gray RM, Sekine R, Shen M, Zacharias T, Williams J, Zhou S, Chawlani R, Ledezma L, Englebert N, Marandi A.   +9 more
europepmc   +1 more source

Long‐Range Exciton Energy Transfer in Two‐Dimensional Materials

Laser &Photonics Reviews, EarlyView.
This review highlights recent advances in long‐range exciton energy transfer within planar 2D‐material architectures. It emphasizes the emergence of self‐hybridized excitonpolaritons, exciton coupling to surface plasmon polaritons and plasmonic lattices, and the role of dipoledipole transfer pathways in enabling efficient nanoscale energy transport ...
Paul H. Bittorf, Maximilian Black, Hebrew Crispin, Prabhdeep Singh, Parsa Darman, Sara Darbari, Fatemeh Chahshouri, Masoud Taleb, Nahid Talebi   +8 more
wiley   +1 more source

Breaking dense integration limits: inverse-designed lithium niobate multimode photonic circuits. [PDF]

Nat Commun
Han X, Jiang H, He J, Zhu Z, Su J, Low MX, Jiang Y, He Y, Feng L, Nguyen TG, Boes A, Pan C, Ren G, Zhang Y, Ren X, Tian Y, Mitchell A, Xia H.   +17 more
europepmc   +1 more source

Mode Integration Disorder Metamaterials: Electromagnetic Wave Manipulation From Arbitrary Coupled Modes to Single Mode

Laser &Photonics Reviews, EarlyView.
When a uniform field interacts with a complex medium, it becomes scattered into a nonuniform distribution. A mode‐integration metamaterial employs its intrinsic controlled disorder to coherently reorganize and integrate the scattered field components into a tailored modal output, establishing a new paradigm for programmable modal coupling and versatile
Junming Zhang, Kaiyuan Zhang, Weijia Luo, Yongzheng Wen, Jingbo Sun, Ji Zhou   +5 more
wiley   +1 more source