Browsing Institutt for fysikk by Journals "Optics Express"
Now showing items 21-31 of 31
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Light trapping in horizontally aligned silicon microwire solar cells
(Journal article; Peer reviewed, 2015)In this study, we demonstrate a solar cell design based on horizontally aligned microwires fabricated from 99.98% pure silicon via the molten core fiber drawing method. A similar structure consisting of 50 μm diameter close ... -
Mueller matrix measurements and modeling pertaining to Spectralon white reflectance standards
(Journal article; Peer reviewed, 2012)The full Mueller matrix for a Spectralon white reflectance standard was measured in the incidence plane, to obtain the polarization state of the scattered light for different angles of illumination. The experimental setup ... -
Optical properties of biaxial nanopatterned gold plasmonic nanowired grid polarizer
(Journal article; Peer reviewed, 2013)Gold nanoparticles deposited on self-organized nano-ripple quartz substrates have been studied by spectroscopic Mueller matrix ellipsometry. The surface was found to have biaxial anisotropic optical properties. For electric ... -
Parametric model of the Mueller matrix of a Spectralon white reflectance standard deduced by polar decomposition techniques
(Journal article; Peer reviewed, 2013)Decomposition methods have been applied to in-plane Mueller matrix ellipsometric scattering data of the Spectralon reflectance standard. Data were measured at the wavelengths 532 nm and 1500 nm, using an achromatic optimal ... -
Real-time in situ Mueller matrix ellipsometry of GaSb nanopillars: observation of anisotropic local alignment
(Journal article; Peer reviewed, 2011)The formation of GaSb nanopillars by low energy ion sputtering is studied in real-time by spectroscopic Mueller matrix ellipsometry, from the initial formation in the smooth substrate until nanopillars with a height of 200 ... -
Reference shape effects on Fourier transform holography
(Journal article; Peer reviewed, 2022) -
Satellite peaks in the scattering of light from the two-dimensional randomly rough surface of a dielectric film on a planar metal surface
(Journal article; Peer reviewed, 2012)A nonperturbative, purely numerical, solution of the reduced Rayleigh equation for the scattering of p- and s-polarized light from a dielectric film with a two-dimensional randomly rough surface deposited on a planar ... -
Sensitive multiplex spectroscopy in molecular fingerprint 2.4 um region with a Cr2+:ZnSe femtosecond laser
(Journal article; Peer reviewed, 2007)An ultrashort-pulse Cr2+:ZnSe laser is a novel broadband source for sensitive high resolution molecular spectroscopy. A 130-fs pulse allows covering of up to 380 cm-1 spectral domain around 2.4 µm which is analyzed ... -
Spatial-temporal structure of the femtosecond third harmonic generation in photonic-crystal fibers
(Journal article; Peer reviewed, 2007)We analyze the third harmonic generation by the supercontinuum at 1.5 µm in nonlinear-glass microstructured fibers. The numerical model includes the real field dynamics and allows analyzing the spectral as well as the ... -
Tapered silicon core fibers with nano-spikes for optical coupling via spliced silica fibers
(Journal article; Peer reviewed, 2017)Abstract: Reported here is the fabrication of tapered silicon core fibers possessing a nanospike input that facilitates their seamless splicing to conventional single mode fibers. A proofof-concept 30 µm cladding diameter ... -
Tm3+-doped CW fiber laser based on a highly GeO2-doped dispersion-shifted fiber
(Journal article; Peer reviewed, 2011)A novel all-fiber laser based on a highly GeO2-doped dispersion-shifted Tm-codoped fiber, pumped at 1.56 µm wavelength and lasing at 1.862 µm wavelength with a slope efficiency up to 37% was demonstrated. The single-mode ...