Výsledky vyhledávání - "René Skov Hansen"

A compact ESPI system for displacement measurements of specular reflecting or optical rough surfaces

Autor: René Skov Hansen

Publikováno v: Optics and Lasers in Engineering. 41:73-80

A stable and compact speckle interferometer for doing out-of-plane displacement measurements on reflective as well as diffusely scattering object surfaces is demonstrated. The set-up is based on a nearly path length compensated interferometer of the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::05cfcb748b3b29d56ff653fcd640ce96
https://doi.org/10.1016/s0143-8166(02)00135-5

Zobrazit plný text záznamu

Introduction of the Impulse Response Function in Common-Path Interferometers with Fourier Plane Filters

Autor: Steven Richard Kitchen, Steen Gruner Hanson, René Skov Hansen

Publikováno v: Optical Review. 8:378-381

In the present paper it will be shown how the introduction of a Fourier plane filter can create various types of common-path interferometers for measuring changes in surface tilt or curvature of an object surface. This is obtained by placing a hologr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::adcc7311d7dbd894eda39dea2d0e3599
https://doi.org/10.1007/s10043-001-0378-9

Zobrazit plný text záznamu

Deformation measurements of specularly reflecting objects using holographic interferometry with diffuse illumination

Autor: René Skov Hansen

Publikováno v: Optics and Lasers in Engineering. 28:259-275

It is demonstrated that, by using diffuse object illumination, deformation measurements with holographic interferometry can be performed on a specularly reflecting object without the use of any additional coating of the object surface. An analytical

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6b09ebe8a62f5a97e0628cbfa222c3a9
https://doi.org/10.1016/s0143-8166(97)00021-3

Zobrazit plný text záznamu

Experimental characteristics of spatial subharmonics in BSO

Autor: René Skov Hansen, Trine Olsen, Per Michael Johansen

Publikováno v: Optics Communications. 115:308-314

The generation of spatial subharmonics in BSO is characterized experimentally. The frequency shift of the subharmonic beam is measured in heterodyne detection, threshold values for the subharmonic generation are measured, and the optimum frequency sh

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::78aa5f118dcb096a6a373db53ae90219
https://doi.org/10.1016/0030-4018(94)00698-t

Zobrazit plný text záznamu

Experimental study on polarized surface enhanced resonance Raman scattering of rhodamine 6G adsorbed on porous Al2O3 substrates

Autor: Søren Hassing, René Skov Hansen, Kit Drescher Jernshøj, Peter Krohne-Nielsen

Publikováno v: Jernshøj, K D, Hassing, S, Hansen, R S & Nielsen, P 2011, ' Experimental study on polarized surface enhanced resonance Raman scattering of rhodamine 6G adsorbed on Porous Al 2 O 3 Substrates ', Journal of Chemical Physics, vol. 135, pp. 124514 . https://doi.org/10.1063/1.3634150

The polarization properties of surface enhanced resonance Raman scattering (SE(R)RS) of rhodamine 6G molecules, adsorbed to a hexagonally ordered gold nanostructure, are studied with the purpose to discriminate between adsorption sites with different

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62e51a2f8bb3f77e746fed49ea66a8e2
https://pubmed.ncbi.nlm.nih.gov/21974542

Zobrazit plný text záznamu

Using high-power light emitting diodes for photoacoustic imaging

Autor: René Skov Hansen

Publikováno v: Hansen, R S 2011, Using high-power light emitting diodes for photoacoustic imaging . in J Dhooge & M M Doyley (eds), Medical Imaging 2011: Ultrasonic Imaging, Tomography, and Therapy . vol. 7968, SPIE-International Society for Optical Engineering, Proceedings of SPIE . https://doi.org/10.1117/12.876516
Hansen, R S 2011, ' Using high-power light emitting diodes for photoacoustic imaging ', Paper presented at SPIE Medical Imaging 2011, Ultrasonic Imaging, Tomography, and Therapy, Lake Buena Vista (Orlando), United States, 12/02/2011-17/02/2011 .

Photoacoustic imaging will become an important supplement to conventional ultrasound imaging. However, the equipment needed is still too delicate to bring this technique into the daily clinical work. The pulsed light source is the area of interest in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::338c1d2a00559ff5266f751466612312
https://portal.findresearcher.sdu.dk/da/publications/d89bfa89-3355-4cd5-b3b0-5c0383763754

Zobrazit plný text záznamu

Dynamic properties of speckled speckles

Autor: René Skov Hansen, Steen Grüner Hanson, Theis Faber Quist Iversen

Publikováno v: Hanson, S G, Iversen, T F Q & Hansen, R S 2010, ' Dynamical properties of speckled speckles ', Proceedings of SPIE-The International Society for Optical Engineering, vol. 7387, pp. 738716 . https://doi.org/10.1117/12.870934

We consider the dynamical properties of speckles observed through a second static diffuser arising from a linear or angularly displaced first diffuser. Analytical expressions are obtained for general situations where both the space between the displa

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9ba5317a19caac04f3e68bda45c1b981
https://doi.org/10.1117/12.870934

Zobrazit plný text záznamu

Revelation Of Molecular Information Obtained From Porous Al2O3 Substrates Applying Polarized SERS

Autor: Kit Drescher Jernshøj, Søren Hassing, René Skov Hansen, Peter Nielsen

Publikováno v: Jernshøj, K D, Hassing, S, Hansen, R S & Nielsen, P 2010, ' Revelation Of Molecular Information Obtained From Porous Al2O3 Substrates Applying Polarized SERS ', ICORS 2010, United States, 24/08/2010 .
University of Southern Denmark

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::696459fb18d5e1defdb0433de165e2d7
https://portal.findresearcher.sdu.dk/da/publications/97ed5ed0-425a-11df-937d-000ea68e967b

Zobrazit plný text záznamu

Compound speckles and their statistical and dynamical properties

Autor: Michael Linde Jakobsen, Steen Grüner Hanson, Harald Yura, René Skov Hansen

Publikováno v: SPIE Proceedings.

Two issues will be treated in this presentation, both focusing on gaining a deeper understanding of dynamic speckles, aiming at the use for probing dynamical properties of scattering structures. The first issue to be addressed is the dynamics of spec

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4fba38f7fe028c1f50faf380bb5179d1
https://doi.org/10.1117/12.796870

Zobrazit plný text záznamu

Effects of system apertures and defocus on the measured phase shift in interferometric displacement measurements

Autor: René Skov Hansen

Publikováno v: Applied optics. 37(2)

The difference between the phase shift occurring at the object surface owing to displacement and the phase shift occurring at the observation plane of the imaging system of the interferometer is studied. Analytical expressions for the phase shift for

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1521c4c714fb5195c704636880895173
https://pubmed.ncbi.nlm.nih.gov/18268591

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání