Publications related to Terahertz time-domain spectroscopy

Generation of broadband THz pulses in organic crystal OH1 at room temperature and 10 K

We studied the effects of cryogenic cooling of a 2-[ 3-(4hydroxystyryl)-5, 5-dimethylcyclohex-2-enylidene] malononitrile (OH1) crystal on the generation of broadband THz pulses via collinear optical rectification of 1350 nm femtosecond laser pulses. Coolin ...

Optical Society of America2014

Interaction between meta-materials and shallow donors in bulk GaN at THz frequency

Nicolas Grandjean, Etienne François Olivier Giraud, Jérôme Faist

We report the coupling and interaction between shallow donors and microcavities in bulk GaN at THz frequencies. At 4K, the shallow donors lead to an absorption at 23.5 meV (5.7 THz) under optical pumping above the bandgap of GaN. The microcavities are base ...

Optical Soc Amer2014

Probing the dynamics of plasmon-excited hexanethiol-capped gold nanoparticles by picosecond X-ray absorption spectroscopy

Majed Chergui, Thomas James Penfold, Jochen Rittmann

Picosecond X-ray absorption spectroscopy (XAS) is used to investigate the electronic and structural dynamics initiated by plasmon excitation of 1.8 nm diameter Au nanoparticles (NPs) functionalised with 1-hexanethiol. We show that 100 ps after photoexcitat ...

Royal Society of Chemistry2014

Recent experimental and theoretical developments in time-resolved X-ray spectroscopies

Majed Chergui, Thomas James Penfold

Capturing the evolving geometric and electronic structure in the course of a chemical reaction or biological process is the principal aim of time-resolved X-ray spectroscopies. Recent technological and methodological improvements, such as high repetition r ...

Elsevier2014

Generation of 0.9-mJ THz pulses in DSTMS pumped by a Cr:Mg2SiO4 laser

Christoph Peter Hauri

We report on high-field terahertz transients with 0.9-mJ pulse energy produced in a 400 mm(2) partitioned organic crystal by optical rectification of a 30-mJ laser pulse centered at 1.25 mu m wavelength. The phase-locked single-cycle terahertz pulses cover ...

Optical Society of America2014

Sinusoidally Modulated Graphene Leaky-Wave Antenna for Electronic Beamscanning at THz

Julien Perruisseau-Carrier, Marc Esquius Morote, Juan Sebastian Gomez Diaz

This paper proposes the concept, analysis and design of a sinusoidally modulated graphene leaky-wave antenna with beam scanning capabilities at a fixed frequency. The antenna operates at terahertz frequencies and is composed of a graphene sheet transferred ...

Ieee-Inst Electrical Electronics Engineers Inc2014

Transverse mode coupling instability of colliding beams

Xavier Buffat, Tatiana Pieloni, Nicolas Frank Mounet

In high brightness circular colliders, coherent and incoherent beam dynamics are dominated by beam-beam interactions. It is generally assumed that the incoherent tune spread introduced by the beam-beam interactions is sufficiently large to cure any instabi ...

American Physical Society2014

Absorption modulation of terahertz metamaterial by varying the conductivity of ground plane

Gabriel Aeppli, Joe Martin Bailey, Wanli Ma

Most research focuses on varying the resonator and dielectric spacer to configure the absorption and resonant frequency of terahertz (THz) metamaterial absorbers (MAs), where a metal ground plane is used as a perfect reflector of incident THz waves. In thi ...

Amer Inst Physics2014

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Terahertz time-domain spectroscopy

Generation of broadband THz pulses in organic crystal OH1 at room temperature and 10 K

Interaction between meta-materials and shallow donors in bulk GaN at THz frequency

Probing the dynamics of plasmon-excited hexanethiol-capped gold nanoparticles by picosecond X-ray absorption spectroscopy

Recent experimental and theoretical developments in time-resolved X-ray spectroscopies

Generation of 0.9-mJ THz pulses in DSTMS pumped by a Cr:Mg2SiO4 laser

Sinusoidally Modulated Graphene Leaky-Wave Antenna for Electronic Beamscanning at THz

Femtosecond photoelectron and photoion spectrometer with vacuum ultraviolet probe pulses

Transverse mode coupling instability of colliding beams

Absorption modulation of terahertz metamaterial by varying the conductivity of ground plane

Design of efficient single-stage chirped pulse difference frequency generation at 7 μm, driven by a dual wavelength Ti:sapphire laser

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Chat with Graph Search

Generation of broadband THz pulses in organic crystal OH1 at room temperature and 10 K

Recent experimental and theoretical developments in time-resolved X-ray spectroscopies

Generation of 0.9-mJ THz pulses in DSTMS pumped by a Cr:Mg2SiO4 laser

Absorption modulation of terahertz metamaterial by varying the conductivity of ground plane

Design of efficient single-stage chirped pulse difference frequency generation at 7 μm, driven by a dual wavelength Ti:sapphire laser

Transverse mode coupling instability of colliding beams

Interaction between meta-materials and shallow donors in bulk GaN at THz frequency

Femtosecond photoelectron and photoion spectrometer with vacuum ultraviolet probe pulses

Probing the dynamics of plasmon-excited hexanethiol-capped gold nanoparticles by picosecond X-ray absorption spectroscopy

Sinusoidally Modulated Graphene Leaky-Wave Antenna for Electronic Beamscanning at THz