International Conference on Infrared, Millimeter, and Terahertz Waves 

About: International Conference on Infrared, Millimeter, and Terahertz Waves is an academic conference. The conference publishes majorly in the area(s): Terahertz radiation & Terahertz spectroscopy and technology. Over the lifetime, 9355 publications have been published by the conference receiving 17268 citations.

An in-line power monitor for HE/sub 11/ low loss transmission lines

Abstract: A power monitor has been developed for the DIII-D 110 GHz EC transmission line, which allows for the measurement of power flowing in the transmission line before it reaches the launcher The power monitor uses a small break in the transmission line to radiate power, which is then measured

Terahertz-pulse emission by laser excitation of surface plasmons in a metal grating

Abstract: Metallic nanostructures have been prepared by depositing thin layers of gold onto a fused-silica transmission grating. Excitation with 800-nm femtosecond laser pulses in air results in the emission of terahertz radiation with an angle-dependent efficiency and a third-order dependence on input power. Nanostructures consisting of metal nano-pyramids on glass as well as silver nano-pyramid arrays covered in gold also exhibit terahertz emission. We will show that the source of the terahertz radiation in all of these cases is surface-plasmon- assisted multiphoton ionisation and ponderomotive acceleration in the evanescent laser field.

1.98 THz resonant-tunneling-diode oscillator with reduced conduction loss by thick antenna electrode

Abstract: We achieved frequency increase in resonant tunneling diode terahertz oscillator by reducing conduction loss in the slot antenna with thick antenna electrode. By a graded increase in electrode thickness for 0.1, 1, 2, and 3 μm, increase in oscillation frequency was obtained. A highest oscillation frequency of 1.98 THz was achieved with an optimum electrode thickness of 2 μm.

Magnetic quantum ratchet effect in graphene

Abstract: We report on the observation of magnetic quantum ratchet (MQR) effect induced by electric field of terahertz radiation in single-layer graphene samples subjected to an inplane magnetic field. We show that the dc electric current stems from the orbital asymmetry of the Dirac fermions induced by an in-plane magnetic field, while the periodic driving comes from terahertz radiation. A microscopic theory of the observed effect is developed being in a good qualitative agreement with the experiment. The observation of the ratchet transport in the purest possible two-dimensional system indicates that the orbital effects may appear and be substantial in other 2D crystals, such as boron nitride, molybdenum dichalcogenides, and related heterostructures. The measurable orbital effects in the presence of an in-plane magnetic field give strong evidence for the existence of structure inversion asymmetry in graphene.

Terahertz transmission spectroscopy of nonpolar materials and relationship with composition and properties

Abstract: Terahertz time-domain spectroscopy is used to study the properties of non-polar materials. Terahertz absorption spectra and refractive indices are measured in a number of glasses and oils. The results are correlated with material properties.