Results 201 to 210 of about 62,943 (302)

Revealing the Resonant Physics of Open Photonic Time Crystals

Laser &Photonics Reviews, EarlyView.
ABSTRACT Photonic time crystals (PTCs) are media whose permittivity is modulated periodically in time, enabling momentum bandgaps and parametric amplification of light. Their realization at the nanoscale can revolutionize the study of light‐matter interactions.
Adrià Canós Valero, Sergei Gladyshev, David Globosits, Stefan Rotter, Egor A. Muljarov, Thomas Weiss   +5 more
wiley   +1 more source

Air-Cladding Blue Laser Diodes. [PDF]

ACS Appl Mater Interfaces
Sawicka M, Hajdel M, Gołyga O, Turski H, Chlipała M, Feduniewicz A, Stańczyk S, Skierbiszewski C, Corley-Wiciak C, Richter C, Muziol G.   +10 more
europepmc   +1 more source

Side‐DBR Guided Exciton‐Polariton Lasing With Near‐Field Mode Imaging in an InGaN Thin‐Film Ridge Waveguide

Laser &Photonics Reviews, EarlyView.
Room‐temperature lower‐polariton‐like lasing is realized in an InGaN/GaN thin‐film ridge cavity with lateral distributed Bragg reflectors. Near‐field optical microscopy distinguishes the transverse side‐DBR‐confined mode from a longitudinal photon‐like mode, while simulations reproduce their spatial profiles.
Wai Yuen Fu, Yuk Fai Cheung, Hoi Wai Choi   +2 more
wiley   +1 more source

Enhanced Quantum Dot Light Emission at Telecom Wavelengths on Metallic Mirrors. [PDF]

Nanomaterials (Basel)
Kaur R, Alkaales M, Benyoucef M.
europepmc   +1 more source

Intensity Noise Dynamics in Terahertz Quantum Cascade Lasers

Laser &Photonics Reviews, EarlyView.
Intensity‐noise dynamics in terahertz quantum cascade lasers are investigated across single‐mode, dense‐comb and harmonic‐comb regimes using graphene thermoelectric detectors. Harmonic combs show ∼10% lower relative intensity noise, while RIN scales as P0−γ$P_0^{ - \gamma }$ with γ≈1.2$\gamma \approx 1.2$, revealing a crossover from spontaneous ...
M. Alejandro Justo‐Guerrero, Leonardo Viti, Vladimir Pushkarev, Lianhe Li, Edmund H. Linfield, Miriam S. Vitiello   +5 more
wiley   +1 more source

C-Axis Oriented LiNbO₃ Thin Film Grown by Chemical Beam Epitaxy for Surface Acoustic Wave Device Applications. [PDF]

Sensors (Basel)
Smagin N, Bui TNK, Oumekloul Z, Moalla R, Maudez W, Wagner E, Duquennoy M, Mathlouthi RK, Deblock Y, Dahmani H, Remiens D, Carlier J, Benvenuti G.   +12 more
europepmc   +1 more source

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

Site-control of InAs quantum dots on InP by droplet epitaxy in MOVPE. [PDF]

Npj Nanophoton
Zhou G, Sala EM, Na YI, Fry PW, Hallett DJ, Brash AJ, Wilson L, Heffernan J.   +7 more
europepmc   +1 more source

Electrochemical Investigation of Alumina Thin Films for Electronic Packaging

Materials and Corrosion, EarlyView.
Surface morphology of alumina films on copper substrates produced by ALD. Characterization of the alumina film properties by FTIRR (left) and EIS (right). ABSTRACT Thin films of alumina processed by atomic layer deposition (ALD) were electrochemically investigated by impedance spectroscopy (EIS) and linear sweep voltammetry (LSV) as well as material ...
M. Schneider, U. Gierth, U. Langklotz, M. Krug, S. Höhn   +4 more
wiley   +1 more source

Initial and Middle Stages of Quantum Dots Growth: From Dynamics of Superstructures to Island-Size Distributions. [PDF]

Nanomaterials (Basel)
Kukenov O, Dirko V, Lozovoy K, Kokhanenko A.   +3 more
europepmc   +1 more source