Results 41 to 50 of about 96,151 (324)
Optomechanical antennas for on-chip beam-steering
Optics Express, 2018 Rapid and low-power control over the direction of a radiating light field is a major challenge in photonics and a key enabling technology for emerging sensors and free-space communication links. Current approaches based on bulky motorized components are limited by their high cost and power consumption, while on-chip optical phased arrays face ...
Christopher J. Sarabalis +2 more
openaire +4 more sources
Laser and electron deflection from transverse asymmetries in laser-plasma accelerators. [PDF]
, 2019 We report on the deflection of laser pulses and accelerated electrons in a laser-plasma accelerator (LPA) by the effects of laser pulse front tilt and transverse density gradients.
Benedetti, Carlo +11 more
core +1 more source
Design Aspects of a Broadband Beam-Reconfigurable Leaky-Wave Antenna [PDF]
, 2016 Design aspects of a novel beam-reconfigurable pla-nar series-fed array are addressed to achieve beam steering with frequency tunability over a relatively broad bandwidth.
Abdo-Sánchez, Elena +5 more
core +1 more source
IEEE Photonics Journal, 2012 A compact and super-high-resolution beam steering device is demonstrated using a Bragg reflector waveguide. For 37-nm tuning in input wavelengths, we obtained a continuous beam steering angle of 60°.
X. Gu +3 more
doaj +1 more source
Terahertz Beam Steering Using a MEMS-Based Reflectarray Configured by a Genetic Algorithm
IEEE Access, 2022 With the increase in potential uses of terahertz technology, the need for terahertz transceivers with application-oriented adaptive radiation patterns has emerged.
Xuan Liu +10 more
doaj +1 more source
Two Dimensional Array Imaging with Beam Steered Data
, 2013 This paper discusses different approaches used for millimeter wave imaging of two-dimensional objects. Imaging of a two dimensional object requires reflected wave data to be collected across two distinct dimensions.
Patole, Sujeet, Torlak, Murat
core +1 more source
Metal-dielectric-metal plasmonic resonators for active beam steering in the infrared [PDF]
, 2013 Cataloged from PDF version of article.Active beam-steering devices near the optical frequencies have long been sought after due to their applications in communication, defense, and display technologies; however, the challenge lies in achieving actively ...
Battal, E., Okyay, A. K.
core +1 more source
FEBS Letters, EarlyView.B cells sense external mechanical forces and convert them into biochemical signals through mechanotransduction. Understanding how malignant B cells respond to physical stimuli represents a groundbreaking area of research. This review examines the key mechano‐related molecules and pathways in B lymphocytes, highlights the most relevant techniques to ...
Marta Sampietro +2 more
wiley +1 more source
A geophone subarray beam-steering process [PDF]
Exploration Geophysics, 1984 The outputs of geophone array elements are conventionally summed into a single output trace. This summation attenuates incoherent noise, horizontally propagating surface waves, and obliquely incident events. The geophone subarray beam‐steering process is a plane‐wave stacking technique which removes the differential moveout and improves the resolution
Alfred L. Liaw +2 more
openaire +3 more sources
Error Analysis of Programmable Metasurfaces for Beam Steering [PDF]
IEEE Journal on Emerging and Selected Topics in Circuits and Systems, 2020 Recent years have seen the emergence of programmable metasurfaces, where the user can modify the EM response of the device via software. Adding reconfigurability to the already powerful EM capabilities of metasurfaces opens the door to novel cyber-physical systems with exciting applications in domains such as holography, cloaking, or wireless ...
Hamidreza Taghvaee +3 more
openaire +5 more sources