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We present an accurate determination of the refractive index of hydrogen, helium, H2O and neon up to 35 GPa at ambient temperature. The experimental method is based on the combination of two interferometric signals of the Fabry-Perot cavity…

Materials Science · Physics 2009-11-07 A. Dewaele , J. Eggert , P. Loubeyre , R. Le Toullec

An empirical relation based on energy gap and refractive index data has been proposed in the present study to calculate the refractive index of semiconductors. The proposed model is then applied to binary as well as ternary semiconductors…

General Physics · Physics 2015-08-17 S. K. Tripathy

In scanning probe microscopy laser interferometers are usually used for measuring the position of the probe tip with a metrological traceability. As the most of the AFM setups are designed to work under standard atmospheric conditions the…

Instrumentation and Detectors · Physics 2022-10-25 V. Hucl , M. Cizek , J. Hrabina , B. Mikel , S. Rerucha , Z. Buchta , P. Jedlicka , A. Lesundak , J. Oulehla , L. Mrna , M. Sarbort , R. Smid , J. Lazar , O. Cip

The Ohara glass S-FTM16 is of considerable interest for near-infrared optical designs because it transmits well through the K band and because negative S-FTM16 elements can be used to accurately achromatize positive calcium fluoride…

Astrophysics · Physics 2009-11-10 Warren R. Brown , Harland W. Epps , Daniel G. Fabricant

A novel method is proposed to measure the refractive indices (RIs) of the materials of different transparent solid state media. To exploit the advantage of non-contact measurement laser beam interferometry is used as an effective technique…

Physics Education · Physics 2024-06-19 Arnab Pal , Kriti R. Sahu , Pradipta Panchadhyayee , Debapriyo Syam

Uncertainties of refractive and group index in dispersion measurement by spectrally resolved white light interferometry are deeply analyzed. First, the contribution to uncertainty of the different parameters affecting both indices is…

A fine control of the variation of the refractive index as a function of structural damage is essential in the fabrication of diamond-based optical and photonic devices. We report here about the variation of the real part of the refractive…

Materials Science · Physics 2016-08-29 P. Olivero , S. Calusi , L. Giuntini , S. Lagomarsino , A. Lo Giudice , M. Massi , S. Sciortino , M. Vannoni , E. Vittone

A method to engineer the refractive indices of functional materials (TiO2, ZnO, SnO2, SiO2), by nanostructuring in the deep sub-wavelength regime (<20nm), is presented. Block-copolymer templating combined with a wet processing route is used…

Mesoscale and Nanoscale Physics · Physics 2015-05-01 Zsolt Poole , Aidong Yan , Paul Ohodnicki , Kevin Chen

To create self-controlled radiation photonics systems, it is necessary to have complete information about the nonlinear properties of the materials used. In this paper, the vibrational mechanism of the giant low-inertia cubic nonlinearity…

The refractive index of novel organosilica (nano/micro)material is determined using two methods. The first method is based on analysis of optical extinction efficiency of organosilica beads versus wavelength, which is obtained by a standard…

The five-layer nanorod-mediated surface plasmon sensor with inhomogeneous liquid crystal layer was theoretically investigated. The reflectance as the function of the incident angle was calculated at different voltages applied to the liquid…

Applied Physics · Physics 2018-04-02 Ye. S. Yarmoshchuk , V. I. Zadorozhnii , V. Yu. Reshetnyak

The temperature dependence of the magnetic resonance spectra of nitrogen-vacancy (NV-) ensembles in the range of 280-330 K was studied. Four samples prepared under different conditions were studied with NV- concentrations ranging from 10…

Mesoscale and Nanoscale Physics · Physics 2010-10-12 V. M. Acosta , E. Bauch , M. P. Ledbetter , A. Waxman , L. S. Bouchard , D. Budker

This paper shows a systematic experimental and theoretical study on the temperature dependence of the infrared optical properties of pyrolytic boron nitride (pBN), from 390 to 1050 $^{\circ}$CC for wavelengths between 4 and 16 {\mu}m. The…

Gallium antimonide (GaSb) is a key material for near- and mid-infrared photonics, enabling high-performance laser architectures and detectors. Design and simulation of such devices depend on accurate optical material data, especially the…

We report on the optical properties of the hole-doped manganites La_0.7Ca_0.3MnO_3 and La_0.7Ca_0.3MnO_3. Transmission and reflection of thin films are measured in the infrared at temperatures from 10 - 150 K using Fourier-transform…

Strongly Correlated Electrons · Physics 2009-10-31 J. R. Simpson , H. D. Drew , V. N. Smolyaninova , R. L. Greene , M. C. Robson , Amlan Biswas , M. Rajeswari

We apply spinning-disc picometrology to measure the complex refractive index of graphene on thermal oxide on silicon. The refractive index varies from n = 2.4-1.0i at 532 nm to n = 3.0-1.4i at 633 nm at room temperature. The dispersion is…

Materials Science · Physics 2008-12-19 Xuefeng Wang , Yong P. Chen , David D. Nolte

The refractive optical design of the James Webb Space Telescope (JWST) Near Infrared Camera (NIRCam) uses three infrared materials in its lenses: LiF, BaF2, and ZnSe. In order to provide the instrument's optical designers with accurate,…

Optics · Physics 2008-05-02 Douglas B. Leviton , Bradley J. Frey , Todd Kvamme

The temperature dependence of ultrafast photoinduced reflectivity transients is reported in Nd$_{0.5}$Sr$_{0.5}$MnO$_{3}$ thin film. The photoinduced reflectivity shows a complex response with very different temperature dependences on…

Condensed Matter · Physics 2009-11-10 T. Mertelj , D. Mihailovic , Z. Jagličič , A. A. Bosak , O. Yu. Gorbenko , A. R. Kaul

We design a spectrally resolved interferometer to measure the refractive index of transparent samples over a broad spectral range between 400 and 550 nm. The measuring device consists of a Michelson interferometer whose output is analysed…

Optics · Physics 2024-02-01 Y. Arosa , E. Lopez Lago , R. de la Fuente