Publications by Ian Michael Rousseau

Optical and thermal characterization of a group-III nitride semiconductor membrane by microphotoluminescence spectroscopy and Raman thermometry

Nicolas Grandjean, Jean-François Carlin, Raphaël Butté, Ian Michael Rousseau

We present the simultaneous optical and thermal analysis of a freestanding photonic semiconductor membrane made from wurtzite III-nitride material. By linking microphotoluminescence spectroscopy with Raman thermometry and other spectroscopic techniques, we ...

Amer Physical Soc2023

Gas pressure measurement device

Ian Michael Rousseau, Pirouz Sohi

The present invention concerns vacuum pressure gauge or gas pressure measurement device comprising a polar semiconductor structure, at least one light source for illuminating a surface of the polar semiconductor structure, measurement means configured to m ...

2019

III-Nitride Semiconductor Photonic Nanocavities on Silicon

Ian Michael Rousseau

Optical nanocavities enhance light-matter interaction due to their high quality factors (Q) and small modal volumes (V). The control of light-matter interaction lies at the heart of potential applications for integrated optical circuits, including optical ...

EPFL2018

A quantum optical study of thresholdless lasing features in high-beta nitride nanobeam cavities

Nicolas Grandjean, Jean-François Carlin, Raphaël Butté, Ian Michael Rousseau, Noelia Vico Triviño, Gordon Jens Callsen

Nature Research2018

Optical absorption and oxygen passivation of surface states in III-nitride photonic devices

Nicolas Grandjean, Jean-François Carlin, Raphaël Butté, Ian Michael Rousseau, Gwénolé Jean Jacopin, Gordon Jens Callsen

2018

Quantification of scattering loss of III-nitride photonic crystal cavities in the blue spectral range

Nicolas Grandjean, Jean-François Carlin, Raphaël Butté, Ian Michael Rousseau, Irene Sánchez Arribas, Kanako Shojiki

The mechanisms contributing to experimental quality factors of shortwavelength (lambda = 440-480 nm) III-nitride on silicon one-dimensional photonic crystal cavities were quantified. Fluctuations in fundamental and first-order cavity mode wavelength and qu ...

Amer Physical Soc2017

Fabrication defects and grating couplers in III-nitride photonic crystal nanobeam lasers (Conference Presentation)

Nicolas Grandjean, Jean-François Carlin, Raphaël Butté, Ian Michael Rousseau

We report a numerical and experimental investigation of fabrication tolerances and outcoupling in optically pumped III-nitride nanolasers operating near lambda = 460 nm, in which feedback is provided by a one-dimensional photonic crystal nanobeam cavity an ...

Spie-Int Soc Optical Engineering2016

Far-field coupling in nanobeam photonic crystal cavities

Nicolas Grandjean, Jean-François Carlin, Raphaël Butté, Ian Michael Rousseau, Irene Sánchez Arribas

We optimized the far-field emission pattern of one-dimensional photonic crystal nanobeams by modulating the nanobeam width, forming a sidewall Bragg cross-grating far-field coupler. By setting the period of the cross-grating to twice the photonic crystal p ...

Amer Inst Physics2016