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Single crystal diamond gain mirrors for high performance vertical external cavity surface emitting lasers

Publications associées (44)

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Metal diamond composites: Challenges in interface design

Ludger Weber

Metal-diamond composites have been identified as promising materials for applications in which high thermal conductivity and low coefficient of thermal expansion is required, e.g. applications of thermal management. Besides the intrinsic properties of the ...

2014

Thermal boundary conductance between refractory metal carbides and diamond

Christian Monachon, Ludger Weber

The thermal boundary conductance (TBC) between thin films of Cr, Mo, Nb and W and diamond substrates has been measured using time domain thermoreflectance before and after a high-vacuum heat treatment at 800 degrees C for 2 h. While no signs of carbide for ...

Elsevier2014

Influence of a Nanometric Al

Christian Monachon, Ludger Weber

The effect of an Al2O3 interlayer on the thermal conductance of metal (Al)/non-metal (diamond and silicon) interfaces is investigated using Time Domain ThermoReflectance (TDTR). Interlayers between 1.7 and 20 nm are deposited on oxygen-terminated diamond a ...

Wiley-Blackwell2014

Thermal Boundary Conductance between metals and dielectrics

Christian Monachon

This work consists in an experimental study of the main parameters governing the transport of heat across an interface between two solids, when it is dominated by phonons. The main experimental tool used is Time-Domain ThermoReflectance (TDTR), which is an ...

EPFL2013

Effect of diamond surface orientation on the thermal boundary conductance between diamond and aluminum

Christian Monachon, Ludger Weber

[100] and [111] oriented diamond substrates were treated using Ar:H and Ar:O plasma treatments, and 1:1 HNO3:H2SO4 heated at 200 ̊C. Subsequent to these treatments, an aluminum layer was either evaporated or sputte- red on the substrates. The Thermal Bound ...

Elsevier2013

Effect of a nm-sized interlayer on the Thermal Boundary Conductance between metals and diamond

Christian Monachon

Study the influence of adjunction of a dielectric or metallic interlayer on the Thermal Boundary Conductance (TBC) measurable between a metallic layer and a diamond substrate. An interlayer does not need to be thick to have a substantial influence influenc ...

2013

An experimental process that was used to obtain a direct measurement of Thermal Boundary Conductance (TBC) between a diamond substrate and several transition metals, deposited by sputtering, is described. Using Time-Domain ThermoReflectance (TDTR), the cri ...

2012

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The subject of light transmission through optically thin metal films perforated with arrays of subwavelength nanoholes has recently attracted significant attention. In this work, we present experimental and calculated results on optical transmission/reflec ...

SPIE-INT SOC OPTICAL ENGINEERING2011

Optical Properties of UT-Shaped Plasmonic Nanoaperture Antennas

Hatice Altug, Arif Engin Cetin, Serap Aksu

In this paper, we present numerical and experimental results on optical properties of a multi-resonant UT-shaped plasmonic nanoaperture antenna for enhanced optical transmission and near-field resolution. We propose different structure designs in order to ...

SPIE-INT SOC OPTICAL ENGINEERING2011

Mechanism of SiC crystals growth on {100} and {111} diamond surfaces upon microwave heating

Sébastien Vaucher

The subject of this work is focused on characterization of the microstructures and orientations of SiC crystals synthesized in diamond–SiC–Si composites using reactive microwave sintering. The SiC crystals grown on the surfaces of diamonds have either shap ...

2010