Concept

Terahertz spectroscopy and technology

Related publications (125)

Graphene Field Effect Devices Operating in Differential Configuration

Davide Sacchetto, Yusuf Leblebici, Clemens Benedict Nyffeler

After decades of miniaturization and performance tuning, Silicon electronics is approaching its technological limits. In the search for alternative transistor channel materials, Graphene has been given much attention since its discovery in 2004, mainly bec ...

2014

TERAHERTZ : New Opportunities for Industry

Jean-Philippe Ansermet, Emile Jacques de Rijk, Alessandro Macor

The purpose of this wiki is to collect information on terahertz technologies, and to foster collaborations among researchers in industry and academia worldwide. ...

2013

Photoinduced processes in lead iodide solid-state solar cells

Michael Graetzel, Jacques-Edouard Moser, Arianna Marchioro, Joël Teuscher, Jan Cornelius Brauer

Organic-inorganic hybrid systems based on lead halide compounds have recently encountered considerable success as light absorbers in solid-state solar cells. Herein we show how fundamental mechanistic processes in mesoporous oxide films impregnated with CH ...

2013

Multi-octave MV/cm pulses filling the THz gap

Christoph Peter Hauri

Single-cycle THz pulses with electric field strength of MV/cm are required for wide range of applications from physics to biology and medicine [1]. Presently, high fields are still challenging to produce in the THz gap (0.1-10 THz) where important condense ...

IEEE2013

Terahertz passive components for Dynamic Nuclear Polarization Nuclear Magnetic Resonance applications

Emile Jacques de Rijk

Terahertz radiation, THz = 1012 Hz, refers to electromagnetic signals with frequencies in the range of 0.3 to 3 THz, and wavelengths between 1 and 0.1 mm. This part of the electromagnetic spectrum is located in between millimeter waves at lower frequencies ...

EPFL2013

Intense THz radiation produced in organic salt crystals for high-field applications

Christoph Peter Hauri

Organic stilbazolium salt crystals pumped by intense, ultrashort mid-infrared laser have been investigated for efficient THz generation by optical rectification. In this paper we present our latest results in view of the generation of single-cycle and high ...

2013

Graphene Antennas: Can Integration and Reconfigurability Compensate for the Loss?

Julien Perruisseau-Carrier, Michele Tamagnone

In this opening presentation we will first recall the main characteristics of graphene conductivity and electromagnetic wave propagation on graphene-based structures. Based on these observations and different graphene antenna simulations from microwave to ...

Ieee2013

Spatiotemporal Focusing Dynamics of Intense Supercontinuum THz Pulses

Christoph Peter Hauri

High-field terahertz (THz) single-cycle pulses with 1.5 MV/cm are generated by optical rectification in the stilbazolium salt crystal 4-N, N-dimethylamino-4'-N'-methyl-stilbazolium 2,4,6-trimethylbenzenesulfonate. We show experimentally that the generated ...

Amer Physical Soc2013

Reflectarray antenna at terahertz using graphene

Julien Perruisseau-Carrier, Francisco Eduardo Carrasco Yepez

The use of graphene for fixed-beam reflectarray antennas at Terahertz (THz) is proposed. Graphene's unique electronic band structure leads to a complex surface conductivity at THz frequencies, which allows the propagation of very slow plasmonic modes. This ...

Institute of Electrical and Electronics Engineers2013

Coupling of a high-energy excitation to superconducting quasiparticles in a cuprate from coherent charge fluctuation spectroscopy

Majed Chergui, Fabrizio Carbone, Andreas Helmut Christian Mann, Mariateresa Scarongella, Ahmad Odeh

Dynamical information on spin degrees of freedom of proteins or solids can be obtained by NMR and electron spin resonance. A technique with similar versatility for charge degrees of freedom and their ultrafast correlations could move the understanding of s ...

National Academy of Sciences2013

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