Results 61 to 70 of about 49,913 (189)

Optical Properties of Bismuth Nanostructures Towards the Ultrathin Film Regime

open access: yes, 2019
Bulk bismuth presents outstanding optical properties, such as a giant infrared refractive index (n near 10) and a negative ultraviolet visible permittivity induced by giant interband electronic transitions. Although such properties are very appealing for
Deeb, Claire   +3 more
core   +1 more source

Temperature dependent optical constants for SiO2 film on Si substrate by ellipsometry

open access: yesMaterials Research Express, 2017
In situ ellipsometry measurements in the spectra range from 246 to 1000 nm were performed on a SiO _2 /Si system at temperatures varying from 25 to 600 °C.
Junbo Gong   +5 more
doaj   +1 more source

Fast and optimal broad-band Stokes/Mueller polarimeter design by the use of a genetic algorithm

open access: yes, 2010
A fast multichannel Stokes/Mueller polarimeter with no mechanically moving parts has been designed to have close to optimal performance from 430-2000 nm by applying a genetic algorithm.
Azzam   +25 more
core   +1 more source

Extreme Ultraviolet Stokesmeter for Pulsed Magneto-Optics

open access: yesPhotonics, 2015
Several applications in material science and magnetic holography using extreme ultraviolet (EUV) radiation require the measurement of the degree and state of polarization.
Mabel Ruiz-Lopez   +3 more
doaj   +1 more source

Optical properties of graphene film growing on a thin copper layer

open access: yesSemiconductor Physics, Quantum Electronics & Optoelectronics, 2016
Optical properties and surface structure of graphene films grown on thin 1-μm copper layer using the chemical vapor deposition method were investigated applying spectroscopic ellipsometry and nanoscopic measurements.
T.S. Rozouvan
doaj   +1 more source

Solidification studies of monotectic systems [PDF]

open access: yes, 1982
Described is an attempt to determine critical wetting temperatures in monotectic systems and to investigate the wetting phase on container walls and the phase preferential wetting of a monotectic ...
Chang, K.
core   +1 more source

Bandgap narrowing in Mn doped GaAs probed by room-temperature photoluminescence

open access: yes, 2015
The electronic band structure of the (Ga,Mn)As system has been one of the most intriguing problems in solid state physics over the past two decades.
Gao, K.   +13 more
core   +1 more source

ELLIPSOMETRY, RAMAN SPECTROSCOPY AND SOI- NANOWIRE BIOSENSOR IN DIAGNOSIS OF COLORECTALCANCER

open access: yesСибирский онкологический журнал, 2017
Differences in the rate constants of specific interactions between serum tumor M2-pyruvate kinase (Tumor M2-PK) and highly specific monoclonal antibodies deposited on the surface of biochips were found in colorectal cancer patients using surface plasmon ...
M. V. Kruchinina   +11 more
doaj   +1 more source

Fast and Sensitive Ellipsometry-Based Biosensing

open access: yesSensors, 2017
In this work, a biosensing method based on in situ, fast, and sensitive measurements of ellipsometric parameters (Ψ, ∆) is proposed. Bare silicon wafer substrate is functionalized and used to bind biomolecules in the solution.
Kewu Li   +6 more
doaj   +1 more source

Ultrafast dynamics of hot charge carriers in an oxide semiconductor probed by femtosecond spectroscopic ellipsometry

open access: yesNew Journal of Physics, 2020
Many linked processes occur concurrently in strongly excited semiconductors, such as interband and intraband absorption, scattering of electrons and holes by the heated lattice, Pauli blocking, bandgap renormalization and the formation of Mahan excitons.
Steffen Richter   +10 more
doaj   +1 more source

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