Results 71 to 80 of about 423,461 (345)

DFT-investigation on anisotropy degree of electronic, optical, and mechanical properties of olivine ZnRE2S4 (RE = Er, Tm) compounds

Materials Research Express, 2020
Using PP-APW method the electronic, optical and mechanical anisotropy of ZnRE _2 S _4 (RE = Er, Tm) olivine compounds was investigated. The calculated unit cell parameters are in good agreement compared to the experimental ones. In addition, the study of
M Batouche, T Seddik, S Uğur, G Uğur, S Messekine, Tuan V Vu, O Y Khyzhun   +6 more
doaj   +1 more source

The phonon dispersion of graphite by inelastic x-ray scattering

, 2007
We present the full in-plane phonon dispersion of graphite obtained from inelastic x-ray scattering, including the optical and acoustic branches, as well as the mid-frequency range between the $K$ and $M$ points in the Brillouin zone, where experimental ...
A. Bosak, C. Thomsen, C. Thomsen, E. Dobardžić, I. Milošević, J. Maultzsch, M. Damnjanović, M. Krisch, M. Krisch, M. Mohr, P. Pavone, S. Reich, S. Reich, T. Inui, W. Press   +14 more
core   +1 more source

Search for Possible Variation of the Fine Structure Constant [PDF]

, 2003
Determination of the fine structure constant alpha and search for its possible variation are considered. We focus on a role of the fine structure constant in modern physics and discuss precision tests of quantum electrodynamics.
B.N. Taylor, B.N. Taylor, Chr. Tamm, D.J. Berkland, D.J. Fixsen, E. Peik, G. Wilpers, G.W.F. Drake, H. Marion, H. Schnatz, H.S. Margolis, J. Stenger, J. von Zanthier, J.-P. Uzan, J.D. Prestage, J.J. Bollinger, J.K. Webb, K. Hagiwara, M.C. George, M.P. Savedoff, N.E. Rothery, P. Langacker, P.J. Mohr, R.I. Thompson, S. Bize, S.G. Karshenboim, S.G. Karshenboim, Savely G. Karshenboim, T. Beier, T. Kinoshita, T. Udem, Th. Udem, W.J. Marciano   +32 more
core   +1 more source

Intercompartmental communication in senescence

FEBS Open Bio, EarlyView.
Senescent cells experience structural changes in the plasma membrane, endoplasmic reticulum, mitochondria, lysosomes, nucleus, and cytoskeleton. These alterations disrupt crosstalk among cellular compartments, impairing vesicular trafficking, contact sites, and molecular flow.
Krystyna Mazan‐Mamczarz, Eleanor J. Wind, Jixiang Leng, Myriam Gorospe   +3 more
wiley   +1 more source

Synthesis, Characterization and Optical Constants of Silicon Oxycarbide

EPJ Web of Conferences, 2017
High refractive index glasses are preferred in integrated photonics applications to realize higher integration scale of passive devices. With a refractive index that can be tuned between SiO2 (1.45) and a-SiC (3.2), silicon oxycarbide SiOC offers this ...
Memon Faisal Ahmed, Morichetti Francesco, Abro Muhammad Ishaque, Iseni Giosue, Somaschini Claudio, Aftab Umair, Melloni Andrea   +6 more
doaj   +1 more source

Determination of fundamental optical constants of Zn2SnO4 films

Semiconductor Physics, Quantum Electronics & Optoelectronics, 2017
Examined in this paper have been optical properties of polycrystalline films Zn2SnO4 deposited using the spray pyrolysis method within the range of substrate temperatures 250 °C to 450 °C in increments of 50 °C.
A.O. Salohub, A.A. Voznyi, O.V. Klymov, N.V. Safryuk, D.I. Kurbatov, A.S. Opanasyuk   +5 more
doaj   +1 more source

Studying the Optical Properties of CdS Thin Films Prepared by Thermal Vacuum Evaporation Technique with a Different Thickness [PDF]

مجلة جامعة الانبار للعلوم الصرفة, 2012
CdS thin films with a different thickness have been prepared on glass substrates by using the thermal vacuum evaporation technique at substrate temperature of 150oC.
Mahir N. Thomail
doaj   +1 more source

All-Optical Constant-Force Laser Tweezers [PDF]

Biophysical Journal, 2004
Optical tweezers are a powerful tool for the study of single biomolecules. Many applications require that a molecule be held under constant tension while its extension is measured. We present two schemes based on scanning-line optical tweezers to accomplish this, providing all-optical alternatives to force-clamp traps that rely on electronic feedback ...
Nambiar, Rajalakshmi, Gajraj, Arivalagan, Meiners, Jens-Christian   +2 more
openaire   +2 more sources

Ab-initio calculations of the Optical band-gap of TiO2 thin films

, 2004
Titanium dioxide has been extensively studied in recent decades for its important photocatalytic application in environmental purification. The search for a method to narrow the optical band-gap of TiO2 plays a key role for enhancing its photocatalytic ...
ASUKA TERAI, KENJI KANEKO, LEI MIAO, MASAKI TANEMURA, NATALIYA NABATOVA-GABIN, PING JIN, RACHID BELKADA, Regan O., SAKAE TANEMURA, WILFRIED WUNDERLICH, Wunderlich W., Wunderlich W.   +11 more
core   +1 more source

Fundamental optical and magneto-optical constants of Co/Pt and CoNi/Pt multilayered films [PDF]

, 1996
A study has been made of the optical and magneto-optical properties of several Co/Pt and CoNi/Pt multilayered films that were fabricated by magnetron sputter deposition.
Atkinson, R., Grundy, P.J., Lodder, J.C., Meng, Q., Meng, Q., Pahirathan, S., Salter, I.W., Tatnall, C.J.   +7 more
core   +2 more sources