Results 111 to 120 of about 7,684 (263)
Plasmonic effects upon optical trapping of metal nanoparticles
, 2010 Optical trapping of metal nanoparticles investigates phenomena at the interface of plasmonics and optical micromanipulation. This thesis combines ideas of optical properties of metals originating from solid state physics with force mechanism resulting ...
Dienerowitz, Maria
core
Generation and transmission of optical vortex beam in all-fiber optical system
, 2022 We present an experimental study on generation and transmission of optical vortex in an all-fiber system consisting of an antiresonant fiber butt-coupled with a dedicated fiber-based vortex generator.
Stepniewski, Grzegorz +9 more
core
Optical fluid and biomolecule transport with thermal fields [PDF]
, 2011 A long standing goal is the direct optical control of biomolecules and water for applications ranging from microfluidics over biomolecule detection to non-equilibrium biophysics.
Braun, Dieter +5 more
core +1 more source
Advanced Functional Materials, EarlyView.Thermally oxidized MoS2‐based radio‐frequency switches enable a multifunctional platform that unifies broadband RF switching and in‐memory computation. The device achieves a cutoff frequency of 33.2 THz with high energy efficiency and supports hardware‐aware signal processing.
Juho Son +5 more
wiley +1 more source
Vortex sheets in optical and coherence fields
, 2008 Instead of the well-known line type of phase singularities in optical and coherence fields, we introduce a new concept of what we call Vortex Sheet into singular optics.
Hanson, Steen G. +7 more
core +1 more source
Janus Photonic Graphics by Stratified Assembly of Two Distinct Colloids
Advanced Functional Materials, EarlyView.Double‐sided Janus photonic micropatterns with vivid structural colors are fabricated through a single‐step bottom‐up strategy. Density‐driven stratification and depletion‐mediated crystallization of PMMA and PS binary colloids lead to exclusive lattices on opposite surfaces under centrifugal force.
Young Geon Kim +4 more
wiley +1 more source
Transverse and Longitudinal Energy Flows in a Sharp Focus of Vortex and Cylindrical Vector Beams
Applied SciencesIt is shown in this work that, with strong focusing of a beam with optical vortex and circular polarization, three energy flows take place in the focal plane: direct longitudinal, reverse longitudinal and azimuthal transverse flows. Calculations are made
Victor V. Kotlyar +4 more
doaj +1 more source
Advanced Functional Materials, EarlyView.Develop a LiCl–PEI–PAM hydrogel with 3000% stretchability and excellent optical transparency. Through comparative studies of various salts, confirm that LiCl is the most suitable salt for high TENG output. Achieve excellent freeze‐resistant, dry‐resistant, and rapid self‐healing (10 s) properties even in extreme environments. Balance ionic conductivity,
Hai Anh Thi Le +6 more
wiley +1 more source
Spatially dependent Raman gain by vortex beam in a four-level N-typed atomic system
Scientific ReportsAn efficient scheme for controlling the spatial Raman gain is proposed in a cold atomic ensemble with a four-level N-typed configuration. The cold atoms are driven by the Laguerre-Gaussian (LG) vortex beams. Considering the control and driving fields are
Tong Zhang +4 more
doaj +1 more source