Polycarbonate microchannel network with carpet of Gold NanoWires as SERS-active device

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Publications associées (28)

Ultraviolet transient absorption, transient grating and photon echo studies of aqueous tryptophan

Majed Chergui, Olivier Christian Bräm, Andrea Cannizzo, Ahmad Ajdar Zadeh Oskouei, Cristina Consani

We compare UV transient grating (TG) experiments of aqueous tryptophan with transient absorption (TA) and fluorescence up-conversion measurements. The TG and TA signals show a bi-exponential rise with sub-ps and ps time constants, which are consistent with ...

Elsevier2013

Functional and Structural Imaging with Optical Coherence Microscopy : Principles & Applications

Arno Pino Bouwens

Fluorescence microscopy techniques are well established research tools and have proven their use in a large variety of biomedical applications. Microscopic molecular contrast is achieved by imaging fluorescent dyes that bind specifically to a molecule of i ...

EPFL2013

Nanostructured Surfaces for the Detection of Single-Particles and Single-Molecules

Romain Wyss

Biomarker detection and diagnosis are important steps in the prevention and the treatment of a disease. There is an increasing need for utmost sensitive and robust sensing devices; in this framework, subwavelength (metal) pores could contribute to a concep ...

EPFL2013

Molecule-Dependent Plasmonic Enhancement of Fluorescence and Raman Scattering near Realistic Nanostructures

Olivier Martin, Andreas Kern

The enhancement of fluorescence and Raman scattering by plasmonic nanostructures is studied theoretically with special focus on the effects of the observed molecule's properties and the realistic geometry of the plasmonic nanostructure. Numerical experimen ...

Amer Chemical Soc2012

Fast Single-Photon Avalanche Diode Arrays for Laser Raman Spectroscopy

Edoardo Charbon

We incorporate newly developed solid-state detector technology into time-resolved laser Raman spectroscopy, demonstrating the ability to distinguish spectra from Raman and fluorescence processes. As a proof of concept, we show fluorescence rejection on hig ...

Optical Society of America2011

Individual particle handling in a microfluidic system based on parallel laser trapping

René Salathé, Horst Vogel, Peter Ryser, Mathieu Grossenbacher, Michael Werner, Bastien Rachet

We present an optical trapping system combining individually addressable multiple laser traps with fluorescence spectroscopy. An in-line set of 64 near-IR laser diodes is used to create a line of individually addressable traps inside a microfluidic chip. T ...

Optical Society of America2011

Trapping and Sensing 10 nm Metal Nanoparticles Using Plasmonic Dipole Antennas

Christian Santschi, Olivier Martin, Lina Huang

The Optical trapping of Au nanoparticles with dimensions as small as 10 nm in the gap of plasmonic dipole antennas is demonstrated. Single nanoparticle trapping events are recorded in real time by monitoring the Rayleigh scattering spectra of individual pl ...

American Chemical Society (ACS)2010

Mode-Selective Surface-Enhanced Raman Spectroscopy Using Nanofabricated Plasmonic Dipole Antennas

Thomas Schmid, Olivier Martin, Holger Fischer

Mode-selective surface-enhanced Raman spectroscopy (SERS) is demonstrated using plasmonic dipole antennas fabricated with electron beam lithography. An similar to 10x change of the relative enhancement between two different Raman modes is observed when the ...

2009

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