Publications de Odeta Limaj | EPFL Graph Search

Self-Similar Multiresonant Nanoantenna Arrays for Sensing from Near- to Mid-Infrared

Hatice Altug, Odeta Limaj, Daniel Rodrigo Lopez, Andreas Tittl, Aurélian Michel John-Herpin

Tailoring nanoscale light concentration and electromagnetic near-field enhancement over a broad spectral range is crucial for many photonics applications such as infrared spectroscopy, photodetection, and light harvesting. So far, broadband light enhanceme ...

2018

Resolving molecule-specific information in dynamic lipid membrane processes with multi-resonant infrared metasurfaces

Hilal Lashuel, Nadine Aït Bouziad, Hatice Altug, Odeta Limaj, Daniel Rodrigo Lopez, Christopher David Kelly, Andreas Tittl, Aurélian Michel John-Herpin

A multitude of biological processes are enabled by complex interactions between lipid membranes and proteins. To understand such dynamic processes, it is crucial to differentiate the constituent biomolecular species and track their individual time evolutio ...

Nature Research2018

Double-layer graphene for enhanced tunable infrared plasmonics

Hatice Altug, Odeta Limaj, Daniel Rodrigo Lopez, Andreas Tittl

Graphene is emerging as a promising material for photonic applications owing to its unique optoelectronic properties. Graphene supports tunable, long-lived and extremely confined plasmons that have great potential for applications such as biosensing and op ...

Chinese Acad Sciences, Changchun Inst Optics Fine Mechanics And Physics2017

Infrared Plasmonic Biosensor for Real-Time and Label-Free Monitoring of Lipid Membranes

Hatice Altug, Dordaneh Etezadi, Odeta Limaj, Daniel Rodrigo Lopez

In this work, we present an infrared plasmonic biosensor for chemical-specific detection and monitoring of biomimetic lipid membranes in a label-free and real-time fashion. Lipid membranes constitute the primary biological interface mediating cell signalin ...

American Chemical Society2016

Graphene as Enabling Material for Infrared Plasmonic Biosensors

Hatice Altug, Dordaneh Etezadi, Odeta Limaj, Daniel Rodrigo Lopez

We demonstrate a graphene infrared biosensor for chemical-specific label-free protein detection. Graphene plasmon resonances are dynamically tuned to enhance protein vibrational bands. We show that the extreme light confinement makes graphene plasmons extr ...

IEEE2016

Mid-infrared plasmonic biosensing with graphene

Hatice Altug, Dordaneh Etezadi, Odeta Limaj, Daniel Rodrigo Lopez

Infrared spectroscopy is the technique of choice for chemical identification of biomolecules through their vibrational fingerprints. However, infrared light interacts poorly with nanometric-size molecules. We exploit the unique electro-optical properties o ...

American Association for the Advancement of Science2015

Superconductivity-Induced Transparency in Terahertz Metamaterials

Odeta Limaj

A plasmonic analogue of electromagnetically induced transparancy is activated and tuned in the terahertz (THz) range in asymmetric metamaterials fabricated from high critical temperature (T-c) superconductor thin films. The asymmetric design provides a nea ...

Amer Chemical Soc2014