Results 101 to 110 of about 15,192 (186)

Electrostatic steering of thermal emission with active metasurface control of delocalized modes

Nature Communications
We theoretically describe and experimentally demonstrate a graphene-integrated metasurface structure that enables electrically-tunable directional control of thermal emission.
Joel Siegel, Shinho Kim, Margaret Fortman, Chenghao Wan, Mikhail A. Kats, Philip W. C. Hon, Luke Sweatlock, Min Seok Jang, Victor Watson Brar   +8 more
doaj   +1 more source

Fiber Bragg Grating Force Sensors for Minimally Invasive Surgery: State of the Art, Challenges, and Opportunities

SmartBot, EarlyView.
This article reviews the application of fiber Bragg grating (FBG) technology for precise force sensing in minimally invasive surgery. It outlines the fundamental working principles and algorithms used to interpret sensor data. The text surveys clinical applications across various medical fields, such as ophthalmology and vascular intervention (Table of
Shiyuan Dong, Tianqi Huang, Lingyu Chen, Shucong Yin, Qing Chang, Dingpei Han, Yangxi Li, Boyu Zhang, Hongen Liao, Fang Chen   +9 more
wiley   +1 more source

Squared-field amplitude modulus and radiation intensity nonequivalence within nonlinear slabs

, 2004
This paper presents a novel approach to wave propagation inside the Fabry-Perot framework. It states that the time-averaged Poynting vector modulus could be nonequivalent with the squared-field amplitude modulus.
Alberto Lencina, D. A. B. Miller, J. D. Jackson, M. Sheik-Bahae, N. I. Koroteev, Pablo Vaveliuk   +5 more
core   +1 more source

A Dual‐Frequency Sensitivity Model for Optical Fibre Ultrasonic Sensors in Power Transformer Partial Discharge Detection

High Voltage, EarlyView.
ABSTRACT The detection of partial discharges (PD) on the power transformer tank demands higher sensitivity in ultrasonic detection. To target the detection frequency band for sensor optimisation and enhance sensitivity, this paper presents a dual‐frequency sensitivity model for optical fibre ultrasonic sensors.
Sihan Wang, Jihang Sun, Jialin Wang, Bin Wei, Guoming Ma   +4 more
wiley   +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

Flexible Dual Fabry–Perot Filters Enabling Color Balanced Narrowband Emission Designed by Physics Guided Neural Inverse Optimization

Nanophotonics, Volume 15, Issue 10, 27 May 2026.
The dual Fabry–Perot interferometer (DFPI) with functionally separated cavities enables simultaneous RGB peak alignment and spectral rebalancing without subpixel patterning. Multi resonance generation and fine spectral tuning are independently controlled, enhancing the color purity.
Keun Soo Shin, Ki Won Jeong, Yun Seon Do
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

Non-scattering Metasurface-bound Cavities for Field Localization, Enhancement, and Suppression

, 2019
We propose and analyse metasurface-bound invisible (non-scattering) partially open cavities where the inside field distribution can be engineered.
Asadchy, V. S., Cuesta, F. S., Glybovski, S. B., Lenets, V. A., Ma, X., Mirmoosa, M. S., Sayanskiy, A. D., Tretyakov, S. A.   +7 more
core  

Electromagnetic Quasinormal Modes: A Foundational Framework for Describing Fano Resonances of Extinction Spectra

Nanophotonics, Volume 15, Issue 9, 13 May 2026.
An ab initio electromagnetic framework links quasinormal modes to Fano resonances in extinction spectra. Analytical expressions for the Fano asymmetry and intensity parameters are derived from overlap integrals, enabling rapid spectral reconstruction and physical interpretation.
Mikhail Bochkarev, Nikolay Solodovchenko, Kirill Samusev, Mikhail Limonov, Tong Wu, Philippe Lalanne   +5 more
wiley   +1 more source

Interference‐Induced Cavity Resonances and Imaginary Rabi Splitting

Nanophotonics, Volume 15, Issue 9, 13 May 2026.
Coupling of a two‐level emitter to (a, b) a single‐mode resonance with a Lorentzian spectral density, and (c, d) a two‐mode cavity with a more complex spectral density. This work reveals a new polaritonic regime beyond the single‐mode description, emerging from emitter interaction with the interference‐induced resonance associated with the Fano ...
Anael Ben‐Asher, Antonio I. Fernández‐Domínguez, Johannes Feist   +2 more
wiley   +1 more source