Results 41 to 50 of about 19,862 (222)
A Soft Microrobot for Single‐Cell Transport, Spheroid Assembly, and Dual‐Mode Drug Screening
Advanced Materials, EarlyView.A soft, untethered hydrogel microrobot enables precise single‐cell delivery, self‐assembly into 3D spheroids, and real‐time thermal actuation. Driven by light‐induced convection and embedded with gold nanorods and temperature sensors, the microrobot guides cells, modulates local microenvironments, and supports drug testing.
Philipp Harder +3 more
wiley +1 more source
Optically tunable acoustic wave band-pass filter
AIP Advances, 2014 The acoustic properties of a hybrid composite that exhibits both photonic and phononic behavior are investigated numerically with finite-element and finite-difference time-domain simulations.
N. Swinteck, P. Lucas, P. A. Deymier
doaj +1 more source
Advanced Electromagnetics, 2020 This work proposes a design of compact filter-antenna with fixed and frequency-agile bands for wireless communications and cognitive radio (CR) systems.
H. A. Atallah
doaj +1 more source
All-integrated universal RF photonic spectral shaper [PDF]
, 2019 We demonstrate a microwave photonic spectral shaper in a silicon chip enabling distinct phase and amplitude modulation transformation. We show unprecedented RF filtering through monolithic integration of the spectral shaper with tunable ring ...
Bedoya, Alvaro Casas +8 more
core
Advanced Optical Materials, Volume 13, Issue 8, March 13, 2025.This article presents a hybrid metal‐dielectric metasurface in transmission mode for mid‐infrared (MIR) spectroscopy. Composed of germanium on aluminium cylinders atop a calcium fluoride substrate, the metasurface achieves 80% transmission efficiency at λ = 2.6 µm with a narrow full‐width‐half‐maximum of 0.4 µm.
Amr Soliman +5 more
wiley +1 more source
Low-error and broadband microwave frequency measurement in a silicon chip
, 2015 Instantaneous frequency measurement (IFM) of microwave signals is a fundamental functionality for applications ranging from electronic warfare to biomedical technology.
Aalto, Timo +8 more
core +1 more source
A Multi‐Resonant Tunable Fabry‐Pérot Cavity for High Throughput Spectral Imaging
Advanced Optical Materials, Volume 13, Issue 8, March 13, 2025.This study introduces a multi‐resonant tunable Fabry‐Pérot filter for high throughput spectral imaging. With a spectral resolution of 10 nm and a switching time of 23 ms, this compact and low‐cost device possesses better spectral imaging accuracy in poor light conditions while maintaining over six times higher optical throughput than standard liquid ...
Xiao Wu +5 more
wiley +1 more source
Tunable Bandpass Transmission Line Based on Uniaxial Single-Crystal Hexaferrites in Multidomain Area [PDF]
Журнал нано- та електронної фізики, 2017 Bandpass transmission line on the basis of uniaxial single-crystal hexaferrites in multidomain area has been proposed in this paper. This line can be used for experimental investigation of excitation and propagation of magnetostatic waves within ...
A.L. Nikytenko +4 more
doaj +1 more source
Improved real-time imaging spectrometer [PDF]
, 1993 An improved AOTF-based imaging spectrometer that offers several advantages over prior art AOTF imaging spectrometers is presented. The ability to electronically set the bandpass wavelength provides observational flexibility.
Chao, Tien-Hsin +3 more
core +1 more source
High-extinction VIPA-based Brillouin spectroscopy of turbid biological media
, 2016 Brillouin microscopy has recently emerged as powerful technique to characterize the mechanical properties of biological tissue, cell and biomaterials.
Fiore, Antonio +4 more
core +1 more source