Results 51 to 60 of about 1,677 (197)

Interferometer -based Technology for Optical Nanoscale Inspection

Measurement Science Review, 2014
We demonstrate the interferometer-based approach for nanoscale grating Critical Dimension (CD) measurements and prove the possibility to achieve no worse than 10 nm accuracy of measurements for 100 nm pitch gratings.
Ryabko M., Koptyaev S., Shcherbakov A., Lantsov A.   +3 more
doaj   +1 more source

Deep Learning Assisted Optimization of Metasurface for Multi-Band Compatible Infrared Stealth and Radiative Thermal Management

Nanomaterials, 2023
Infrared (IR) stealth plays a vital role in the modern military field. With the continuous development of detection technology, multi-band (such as near-IR laser and middle-IR) compatible IR stealth is required.
Lei Wang, Jian Dong, Wenjie Zhang, Chong Zheng, Linhua Liu   +4 more
doaj   +1 more source

Theory of Supercritical Coupling and Generalized Bound States in the Continuum

Laser &Photonics Reviews, EarlyView.
We develop a general theory of supercritical coupling and generalized bound states in the continuum (gBICs), revealing how interference between radiative and absorptive channels enables quality factors beyond conventional material‐loss limits. The framework unifies non‐Hermitian mode coupling, causality‐driven reactive interactions, and interference ...
Sergio Balestrieri, Bruno Miranda, Silvia Romano, Gianluigi Zito   +3 more
wiley   +1 more source

Directional spectral emissivity characterization and modeling of laser-patterned steel surfaces [PDF]

EPJ Web of Conferences
We present preliminary results on the fabrication of patterned surfaces by Direct Laser Interference Patterning and the characterization and theoretical interpretation of their infrared emissivities.
Gabirondo-López Jon, González de Arrieta Iñigo, Soldera Marcos, Lasagni Andrés F., Arredondo Iñigo, Igartua Josu M., López Gabriel A.   +6 more
doaj   +1 more source

A Self‐Evolving Agentic Framework for Metasurface Inverse Design

Laser &Photonics Reviews, EarlyView.
Turning a target optical response into working inverse‐design code normally demands specialized computational‐electromagnetics and software‐engineering expertise. A self‐evolving agentic framework lowers this barrier: from a natural‐language request, it writes the optimization code that drives a physical solver and improves itself by revising human ...
Yi Huang, Bowen Zheng, Yunxi Dong, Hong Tang, Huan Zhao, S. M. Rakibul Hasan Shawon, Hualiang Zhang   +6 more
wiley   +1 more source

An RCWA Analysis of Solar Cell Back Reflectors: Comparison between Modelling and Experiment [PDF]

We present a comparison between spectrally-resolved reflection measurements of gratings and theoretical predictions from RCWA approach. Diffraction intensities vary significantly with polarization, and surface plasmon absorption is observed around the ...
Herzig, Hans Peter, Naqavi, Ali, Scharf, Toralf, Ballif, Christophe, Haug, Franz-Josef, Paeder, Vincent, Söderström, Karin   +6 more
core   +1 more source

From Planar to 3D Nanophotonic Lenses: Advancing Design, Fabrication, and Applications

Laser &Photonics Reviews, EarlyView.
Three‐dimensional nanophotonic lenses are enabled by an integrated workflow that links design parameterization, full‐wave electromagnetic simulation, computational optimization, and freeform fabrication. This Review summarizes how these tools expand optical design freedom beyond a single patterned plane by enriching the local meta‐atom response and ...
Wei Zhu, Lyudmila V. Goncharova, Eric Johlin   +2 more
wiley   +1 more source

Scalable simple liquid deposition techniques for the enhancement of light absorption in thin films: Distributed Bragg reflectors coupled to 1D nanoimprinted textures

AIP Advances, 2017
Light trapping within a light absorbing medium is a key to highly efficient thin film solar cells. We propose a large-scale procedure based on materials with low absorption for the fabrication of combined Distributed Bragg Reflector (DBR) and grating ...
B. Brudieu, I. Gozhyk, W. R. Clements, S. Mazoyer, T. Gacoin, J. Teisseire   +5 more
doaj   +1 more source

Strategic Spatial Segregation in Silicon Photoelectrodes: Decoupling Catalytic and Optical Functions for High‐Efficiency Solar Water Splitting

Small Structures, Volume 6, Issue 5, May 2025.
A novel spatial segregation strategy for silicon photoelectrodes is demonstrated, where catalyst wires surrounded by tapered microwires effectively decouple competing optical and catalytic requirements. This architectural innovation enables optimal light absorption and catalytic activity while maintaining efficient charge transport, achieving 96.5 ...
Soohyeok Park, Dongho Seo, Sangbeom Hong, Geonhwi Kim, Yejin Han, Inkyeong Park, Seongmin Lee, Min‐Joon Park, Ki Min Nam, Han‐Don Um   +9 more
wiley   +1 more source

Near-Field Lithography Optical Proximity Correction Based on Covariance Matrix Adaptation Evolution Strategy

Photonics
Near-field lithography (NFL) can achieve super-resolution patterning beyond the optical diffraction limit by using evanescent waves. However, optical proximity effects in NFL can lead to nonuniform near-field intensity distribution, reduced image ...
Chengyao Pu, Ge Yin, Yanqing Wang, Zeyu Zhao, Changtao Wang, Xiaoliang Ma, Mingbo Pu, Weijie Kong   +7 more
doaj   +1 more source