Results 11 to 20 of about 230,669 (344)

Interferometric tunability of the absorption

open access: yesOptics Express, 2006
We propose an interferometric setup that permits to tune the quantity of radiation absorbed by an object illuminated by a fixed light source. The method can be used to selectively irradiate portions of an object based on their transmissivities or to ...
Giovannetti, Vittorio   +2 more
core   +5 more sources

Tunable Nanoplasmonic Photodetectors

open access: yesNano Letters, 2022
Visible and infrared photons can be detected with a broadband response via the internal photoeffect. By using plasmonic nanostructures, i.e. nanoantennas, wavelength selectivity can be introduced to such detectors through geometry-dependent resonances.
Patrick Pertsch   +5 more
openaire   +3 more sources

Tunable clathrates [PDF]

open access: yesActa Crystallographica Section A Foundations of Crystallography, 2001
Investigation of the selectivity of a diol organic host for mixtures of DMF and DMSO, showed the formation of five inclusion compounds in which the stoichiometry varies in discrete steps and is determined by the composition of the liquid guest mixture; the structures of these compounds are described.
M R, Caira, T, le Roex, L R, Nassimbeni
openaire   +2 more sources

Spin-Polarized Tunable Photocurrents [PDF]

open access: yesNano Letters, 2021
Harnessing the unique features of topological materials for the development of a new generation of topological based devices is a challenge of paramount importance. Using Floquet scattering theory combined with atomistic models we study the interplay between laser illumination, spin and topology in a two-dimensional material with spin-orbit coupling ...
Matías Berdakin   +2 more
openaire   +4 more sources

Tunable beam displacer [PDF]

open access: yesFrontiers in Optics 2014, 2014
We report the implementation of a tunable beam displacer, composed of a polarizing beam splitter (PBS) and two mirrors, that divides an initially polarized beam into two parallel beams whose separation can be continuously tuned. The two output beams are linearly polarized with either vertical or horizontal polarization and no optical path difference is
Salazar Serrano, Luis Jose   +2 more
openaire   +6 more sources

Tunable graphene phononic crystal [PDF]

open access: yesNano Letters, 2020
Abstract In the field of phononics, periodic patterning controls vibrations and thereby the flow of heat and sound in matter. Bandgaps arising in such phononic crystals realize low-dissipation vibrational modes and enable applications towards mechanical qubits, efficient waveguides, and state-of-the-art sensing.
Jan N. Kirchhof   +6 more
openaire   +7 more sources

Laser wakefield driven generation of isolated CEP-tunable intense sub-cycle pulses [PDF]

open access: yes, 2020
Sources of intense, ultra-short electromagnetic pulses enable applications such as attosecond pulse generation, control of electron motion in solids and the observation of reaction dynamics at the electronic level.
Olofsson, Christoffer   +2 more
core   +2 more sources

Tunable microfluidic microlenses [PDF]

open access: yesApplied Optics, 2005
A novel type of liquid microlens, bounded by a microfabricated, distensible membrane and activated by a microfluidic liquid-handling system, is presented. By use of an elastomer membrane fabricated by spin coating onto a dry-etched silicon substrate, the liquid-filled cavity acts as a lens whereby applied pressure changes the membrane distension and ...
Werber, Armin, Zappe, Hans
openaire   +3 more sources

Jamming with Tunable Roughness [PDF]

open access: yesPhysical Review Letters, 2020
We introduce a new model to study the effect of surface roughness on the jamming transition. By performing numerical simulations, we show that for a smooth surface, the jamming transition density and the contact number at the transition point both increase upon increasing asphericity, as for ellipsoids and spherocylinders.
Ikeda, Harukuni   +3 more
openaire   +5 more sources

RF-Characterization of HZO Thin Film Varactors

open access: yesCrystals, 2021
A microwave characterization at UHF band of a ferroelectric hafnium zirconium oxide metal-ferroelectric-metal (MFM) capacitors for varactor applications has been performed.
Sukhrob Abdulazhanov   +9 more
doaj   +1 more source

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