Submillimeter Waves

Submillimeter Waves

 

radio waves with wavelengths λ between 10–3 and 5 × 10–5 m (frequencies between 3 × 1011 and 6 × 1012 hertz). Submillimeter waves have the shortest wavelengths in the radio-frequency portion of the electromagnetic spectrum; shorter waves lie in the optical region. Submillimeter waves are strongly absorbed by water vapor and atmospheric gases, except for a small range of frequencies, called an atmospheric window. Quasi-optical transmission lines are used in working with submillimeter waves (seeQUASI OPTICS). Such waves may be used in addition to optical radiation for space communications.

REFERENCES

See references under RADIO-WAVE PROPAGATION.
References in periodicals archive ?
The astronomers used HST to capture the light from stars which tells us the "current" (as of when the light was emitted, 11 billion years ago) shape of the galaxies, while ALMA observed submillimeter waves from cold clouds of gas and dust, where new stars are being formed.
Submillimeter waves are a unique diagnostic tool for the dense innermost region of the outflow, and at that exact place we detected the rotation.
Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves (MSMW), 14, Kharkiv, Jun.
For the overlap region, people who work in the field use he terms millimeter waves and submillimeter waves for wavelengths greater than or less than 1 millimeter.
Bose Memorial Session, WE2C, on Millimeter and Submillimeter Waves.
Toulios, "Integrated circuit for the millimeter through optical frequency range," Proceedings of MRI Symposium on Submillimeter Waves, J.
Sorolla, "Polypropylene-substrate-based SRR- and CSRR-metasurfaces for submillimeter waves," Opt.
Daniel Marrone and three colleagues measured the polarization of submillimeter waves from its vicinity, and they set new limits on how much--or rather how little--mass it is accreting: a pathetic 2 x [10.
Electromagnetism of artificial fractal medium - The physico-geometrical groundwork," Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves and Workshop on Terahertz Technologies, 2007.
Soon we had the first-ever submillimeter pictures of both Kepler's remnant and Cas A (shown above) and discovered that both remnants are bright sources of submillimeter waves.