Results 21 to 30 of about 66,086 (316)
Results in Physics, 2020 We investigate the polarization structures of an electromagnetic (EM) beam after passing through 2-f and 4-f lens systems and possibilities to control them.
Sethuraj K. R. +2 more
doaj
Sensors, 2011 Linewidth measurements of a distributed feedback (DFB) fibre laser are made using delayed self heterodyne interferometry (DHSI) with both Mach-Zehnder and Michelson interferometer configurations.
Simon Fleming +6 more
doaj +1 more source
Diazonium Chemistry for the Bio-Functionalization of Glassy Nanostring Resonator Arrays
Sensors, 2015 Resonant glassy nanostrings have been employed for the detection of biomolecules. These devices offer high sensitivity and amenability to large array integration and multiplexed assays.
Wei Zheng +6 more
doaj +1 more source
Proceedings of Resolving The Sky - Radio Interferometry: Past, Present and Future — PoS(RTS2012), 2012 8 pages, 2 tables. Accepted in Proceedings of Science (PoS) as part of conference: Resolving the Sky - Radio Interferometry: Past, Present andFuture - RTS2012, April 17-20, 2012, Manchester ...
openaire +3 more sources
Sensors, 2019 This paper presents a 10 to 20 GHz bandwidth microwave polarimeter demonstrator, based on the implementation of a near-infra-red frequency up-conversion stage that allows both the optical correlation, when operating as a synthesized-image interferometer,
Francisco J. Casas +6 more
doaj +1 more source
IEEE Access, 2020 In recent years, the demand for small-scale remote sensing, which is used in disaster monitoring, agriculture, and ground subsidence has increased. A multichannel synthetic aperture radar (SAR) system can provide image and topographic information of the ...
Sumin Kim +6 more
doaj +1 more source
Liquid crystal based spectral control for applications in optical communication and metrology
Results in Optics, 2020 The molecules of nematic liquid crystals (LCs), aligned in one average direction, constitute a birefringent medium. The molecules in nematic LCs of positive anisotropy (ne>no) get aligned in the direction of applied electric field due to the induced ...
Gyaprasad, Bhaskar Kanseri
doaj
Refractive Index Compensation in Over-Determined Interferometric Systems
Sensors, 2012 We present an interferometric technique based on a differential interferometry setup for measurement under atmospheric conditions. The key limiting factor in any interferometric dimensional measurement are fluctuations of the refractive index of air ...
Zdeněk Buchta +5 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.Picosecond direct laser interference patterning (DLIP) enables precise microstructure fabrication on stainless steel. Using a multiscan approach, high‐aspect‐ratio patterns are achieved. Fluence influences structure growth and homogeneity, with smaller periods yielding better uniformity.
Fabian Ränke +5 more
wiley +1 more source
Optical Fiber-Based MR-Compatible Sensors for Medical Applications: An Overview
Sensors, 2013 During last decades, Magnetic Resonance (MR)—compatible sensors based on different techniques have been developed due to growing demand for application in medicine.
Emiliano Schena +4 more
doaj +1 more source