Results 81 to 90 of about 18,106 (224)

FSR-Eliminated Vernier Racetrack Resonators Using Grating-Assisted Couplers

open access: yesIEEE Photonics Journal, 2013
We present the design and experimental demonstration of a contra-directional grating-coupled racetrack resonator exhibiting the Vernier effect. The device consists of two racetrack resonators that are coupled together in a cascaded configuration.
R. Boeck   +3 more
doaj   +1 more source

Ultrabroadband and Highly Sensitive Short‐Wave Infrared Molecular Fingerprinting via Acoustic MXene Plasmons

open access: yesAdvanced Science, EarlyView.
Acoustic plasmons in Ti3C2Tx MXene strongly compress infrared electromagnetic fields and enhance light–matter interactions at the nanoscale. This platform couples broadband plasmon excitations with molecular vibrations, enabling simultaneous sensing of high‐ and low‐frequency vibrational modes in ultrathin PMMA and graphene oxide films, and extending ...
Changhoon Park   +7 more
wiley   +1 more source

Nanoholes Grating Couplers for Coupling Between Silicon-on-Insulator Waveguides and Optical Fibers

open access: yesIEEE Photonics Journal, 2009
Simulation and experimental results of grating couplers composed of arrays of nanoholes are presented. The use of an array of holes instead of a conventional waveguide grating provides an additional degree of freedom in the design of the coupler, thus ...
Xia Chen, Hon Ki Tsang
doaj   +1 more source

Recent Advances in Stimulated Brillouin Scattering in Integrated Photonics

open access: yesAdvanced Physics Research, EarlyView.
This review systematically surveys recent advances in stimulated Brillouin scattering (SBS) within integrated photonics. It begins by elucidating the fundamental mechanisms of stimulated coupling between photons and acoustic phonons in nanoscale waveguides, enhanced by the photoelastic and moving boundary effects.
Songyue Liu   +8 more
wiley   +1 more source

Through-Si-via (TSV) Keep-Out-Zone (KOZ) in SOI Photonics Interposer: A Study of the Impact of TSV-Induced Stress on Si Ring Resonators

open access: yesIEEE Photonics Journal, 2013
Si photonic devices are sensitive to the change in refractive index on the Si-on-insulator (SOI) platform. One of the critical limitations in the compact 3D photonic integration circuit is the through-Si-via (TSV)-induced stress, which affects the ...
Yan Yang   +6 more
doaj   +1 more source

Recent Advances in Photonic Bound States in the Continuum: From Fundamentals to Engineering and Implementation

open access: yesLaser &Photonics Reviews, EarlyView.
This review summarizes recent progress in meta‐photonics with a focus on bound states in the continuum (BICs) as a powerful platform for light confinement and control. It covers fundamental concepts, design strategies across optical regimes, symmetry breaking for practical quasi‐BICs, tunable and AI‐assisted BIC devices, and emerging applications in ...
Hafiz Saad Khaliq, Hak‐Rin Kim
wiley   +1 more source

Optical Retroreflective Marker Fabricated on Silicon-On-Insulator

open access: yesIEEE Photonics Journal, 2011
Optical retroreflective markers provide a strong return signal when illuminated by a source, resulting in an easy way to localize and identify an object.
K. Van Acoleyen   +4 more
doaj   +1 more source

Efficient telecom-to-visible spectral translation through ultra-low power nonlinear nanophotonics

open access: yes, 2019
The ability to spectrally translate lightwave signals in a compact, low-power platform is at the heart of the promise of nonlinear nanophotonic technologies.
Briles, Travis C.   +9 more
core   +1 more source

Germanium‐Based Mid‐Infrared Integrated Photonics

open access: yesLaser &Photonics Reviews, EarlyView.
The mid‐infrared (mid‐IR) spectral range is a part of the electromagnetic spectrum in which most of the molecules have vibrational and rotational resonances. Photonics integration in this wavelength range have thus seen a burst of interest in the recent years, mainly driven by applications related with the detection of chemical and biological ...
Delphine Marris‐Morini   +6 more
wiley   +1 more source

Mid-Infrared Sensor Based on a Suspended Microracetrack Resonator With Lateral Subwavelength-Grating Metamaterial Cladding

open access: yesIEEE Photonics Journal, 2018
A mid-infrared (MIR) biochemical sensor based on a one-time Si etching suspended microracetrack resonator with lateral subwavelength-grating metamaterial cladding is theoretically and experimentally demonstrated on a commercial 340-nm-thick-top-silicon ...
Zecen Zhang   +12 more
doaj   +1 more source

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