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Controlling and utilizing optical forces at the nanoscale with plasmonic antennas

Publications associées (139)

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Multi-resonant metamaterials based on UT-shaped nano-aperture antennas

Hatice Altug, Arif Engin Cetin, Serap Aksu

We demonstrate a compact multi-resonant metamaterial structure based on integrated U- and T-shaped nano-aperture antennas. We investigate the physical origin of the multi-resonant behavior and determine the parameter dependence of the nano-aperture antenna ...

2011

High-throughput nanofabrication of plasmonic structures and metamaterials with high resolution nanostencil lithography

Hatice Altug, Serap Aksu, Min Huang

We demonstrate a novel fabrication approach for high-throughput fabrication of engineered plasmonic antenna arrays and metamaterials with Nanostencil Lithography (NSL). NSL technique, relying on deposition of materials through a shadow mask, offers the fle ...

SPIE-INT SOC OPTICAL ENGINEERING2011

3D optical Yagi-Uda nanoantenna array

Klaus Kern

Future photonic circuits with the capability of high-speed data processing at optical frequencies will rely on the implementation of efficient emitters and detectors on the nanoscale. Towards this goal, bridging the size mismatch between optical radiation ...

2011

Monopole antenna arrays for optical trapping, spectroscopy, and sensing

Hatice Altug, Arif Engin Cetin

We introduce a nanoplasmonic platform merging multiple modalities for optical trapping, nanospectroscopy, and biosensing applications. Our platform is based on surface plasmon polariton driven monopole antenna arrays combining complementary strengths of lo ...

2011

Seeing protein monolayers with naked eye through plasmonic Fano resonances

Hatice Altug, Arif Engin Cetin, Min Huang

We introduce an ultrasensitive label-free detection technique based on asymmetric Fano resonances in plasmonic nanoholes with far reaching implications for point-of-care diagnostics. By exploiting extraordinary light transmission phenomena through high-qua ...

2011

Plasmonic Monopole Antenna Arrays for Biosensing, Spectroscopy and nm-Precision Optical Trapping

Hatice Altug, Arif Engin Cetin

We propose surface plasmon polariton driven plasmonic monopole antenna array system for biosensing, nanospectroscopy and optical trapping. The structure exhibits high refractive index sensitivities, nearfield resolution and optical gradient force. ...

IEEE2011

Directional Double Fano Resonances in Plasmonic Hetero-Oligomers

Hatice Altug

We experimentally demonstrate for the first time a very compact plasmonic hetero-oligomer structure where the multiple radiant and subradiant modes can be tailored independently. Unlike previous approaches based on collective excitations in complex plasmon ...

2011

Optical Plasmonic Trapping

Lina Huang

This work focuses on trapping subwavelength objects using resonant plasmonic structures. Trapping entities include latex spheres, living cells and metallic particles; the plasmonic structures involved include subwavelength disks, subwavelength apertures, a ...

EPFL2010

Optical trapping and sensing with plasmonic dipole antennas

Olivier Martin

In this work, we study how to use a plasmonic dipole antenna as a multifunctional nanodevice for surface-enhanced Raman spectroscopy (SERS), localized surface plasmon resonance (LSPR) -based sensing and optical trapping. An analytical model is implemented ...

Spie-Int Soc Optical Engineering, Po Box 10, Bellingham, Wa 98227-0010 Usa2010

Optical Wire Antennas

In this thesis we study the properties of optical wire antennas. As experimental method for our investigations we use apertureless near-field optical microscopy. This technique achieves high spatial resolution well beyond the diffraction limit by utilizing ...

EPFL2010