Tunnel ionization of deep impurities by far-infrared radiation

Biological activities caused by far-infrared radiation.

Contrary to previous presumption, accumulated evidence indicates that far-infrared rays are biologically active. A small ceramic disk that emits far-infrared rays (4-16 microns) has commonly been applied to a local spot or a whole part of the body for exposure. Pioneering attempts to experimentally analyze an effect of acute and chronic radiation of far-infrared rays on living organisms have de...

FAR-INFRARED ABSORPTION DUE TO IMPURITIES IN CsBr CRYSTALS

Far-infrared radiation response of antenna-coupled quantum-effect devices

This thesis explores the high-frequency transport characteristics of two quantum effect devices: the quantum point contact and the lateral dual gate field-effect transistor (FET). Electron transport in these devices is predominantly phase coherent, since transport takes place in two-dimensional electron gas with high mobility. Phasecoherent devices can detect radiation with quantum-limited sens...

Far infrared extragalactic background radiation: I. Source counts with ISOPHOT

As a part of the ISOPHOT CIRB (Cosmic Infrared Background Radiation) project we have searched for point-like sources in eight fields mapped at two or three wavelengths between 90μm and 180μm. Most of the 55 sources detected are suspected to be extragalactic and cannot be associated with previously known objects. It is probable, also from the far-infrared (FIR) spectral energy distributions, tha...

Far infrared radiation (FIR): its biological effects and medical applications.

Far infrared (FIR) radiation (λ = 3-100 μm) is a subdivision of the electromagnetic spectrum that has been investigated for biological effects. The goal of this review is to cover the use of a further sub-division (3- 12 μm) of this waveband, that has been observed in both in vitro and in vivo studies, to stimulate cells and tissue, and is considered a promising treatment modality for certain m...