Concept

Dielectric mirror

Related publications (152)

Wavelength Tunable Resonant Cavity Enhanced Photodetectors Based on Lead-Salts Grown by MBE

Tunable resonant cavity enhanced detectors (RCED) have been realised for the mid-infrared (IR). The bottom mirror as well as the photodiode inside the cavity are based on narrow gap IV-VI materials and grown by molecular beam epitaxy (MBE) on Silicon subst ...

Springer Netherlands2008

Gradient free sol-gel Pb(Zr-x,Ti1-x)O-3 thin films

Paul Muralt, Florian Calame

Pb(Zr-x,Ti1-x)O-3 thin films of homogeneous composition were synthesized by means of a modified sol-gel route on Pt(111)/TiOx/SiO2/Si substrates. The usually observed gradient in B-site composition could be reduced from +/- 12 to +/- 12.5 at% amplitude in ...

IEEE2007

Domain wall contributions to the properties of piezoelectric thin films

Dragan Damjanovic

In bulk ferroelectric ceramics, extrinsic contributions associated with motion of domain walls and phase boundaries are a significant component of the measured dielectric and piezoelectric response. In thin films, the small grain sizes, substantial residua ...

2007

Diagnostic mirrors for ITER: A material choice and the impact of erosion and deposition on their performance

Richard Pitts

Metal mirrors will be implemented in about half of the ITER diagnostics. Mirrors in ITER will have to withstand radiation loads, erosion by charge-exchange neutrals, deposition of impurities, particle implantation and neutron irradiation. It is believed th ...

2007

First mirror tests for ITER: Influence of material choice on the erosion/deposition mechanisms affecting optical reflectivity

Richard Pitts

Almost all optical diagnostics systems on ITER will be based on in-vessel metallic first mirrors. The possible deterioration of their surface reflectivity as a result of erosion by charge-exchange neutrals and re-deposition of material eroded from the plas ...

2007

Adsorption monitoring device

Hubert Girault, Jean-Pierre Abid

A device for monitoring the adsorption of target molecules on a substrate, the device comprising a substrate (1), at least a portion of which is formed as a thin dielectric layer. A first, modified surface (2) of the layer has ionizable groups of the subst ...

2006

Characterization of MEMS Electrostatic Actuators Beyond Pull-In

Subrahmanyam Venkata Ravi Mohana Sai Gorthi

The operational range of MEMS electrostatic parallel plate actuators can be extended beyond pull-in with the presence of an intermediate dielectric layer, which has a significant effect on the behaviour of such actuators. Here we study the behaviour of can ...

2006

Cantilever beam electrostatic MEMS actuators beyond pull-in

Subrahmanyam Venkata Ravi Mohana Sai Gorthi

The operational range of electrostatic MEMS parallel plate actuators can be extended beyond pull-in in the presence of an intermediate dielectric layer, which has a significant effect on the behavior of such actuators. Here, we study the behavior of cantil ...

Institute of Physics2006

Solar blind AlGaN photodetectors with a very high spectral selectivity

Nicolas Grandjean, Mauro Mosca

Solar blind detectors based on AlGaN heterostructures grown on sapphire by Molecular Beam Epitaxy and with a dielectric interference filter deposited on the back side are demonstrated to provide record spectral selectivity. Rejection ratios of 2 x 10(4), a ...

2006

Sol-gel deposition and optical characterization of multilayered SiO2/Ti1-xSixO2 coatings on solar collector glasses

Jean-Louis Scartezzini, Andreas Schueler, Christian Roecker, Estelle De Chambrier

Thin films of silicon oxide and silicon titanium mixed oxides are deposited on solar collector glazing in a sol–gel dip-coating process based on alcoxide precursors. Spectrophotometry is used to characterize the relation of film thickness and withdrawal sp ...

2006

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