Bolometers, devices that monitor electromagnetic radiation through heating of an absorbing material, are used by astronomers and homeowners alike. But most such devices have limited bandwidth and must be operated at ultralow ...
Nanophysics
Jun 11, 2018
1
225
Terahertz radiation—the band of the electromagnetic spectrum between microwaves and visible light—has promising applications in medical and industrial imaging and chemical detection, among other uses.
Optics & Photonics
Aug 8, 2017
0
564
MIT researchers and their colleagues are designing an imaging system that can read closed books.
Optics & Photonics
Sep 9, 2016
2
1027
Terahertz radiation—the band of electromagnetic radiation between microwaves and visible light—has promising applications in security and medical diagnostics, but such devices will require the development of compact, ...
Optics & Photonics
Jun 13, 2016
0
1396
Terahertz spectroscopy, which uses the band of electromagnetic radiation between microwaves and infrared light, is a promising security technology because it can extract the spectroscopic "fingerprints" of a wide range of ...
Optics & Photonics
May 23, 2016
1
1195
Physicists have found a radical new way confine electromagnetic energy without it leaking away, akin to throwing a pebble into a pond with no splash.
General Physics
Aug 27, 2015
56
4255
Nanfang Yu, assistant professor of applied physics at Columbia Engineering, and colleagues from the University of Zürich and the University of Washington, have discovered two key strategies that enable Saharan silver ants ...
Plants & Animals
Jun 18, 2015
15
10601
A team of researchers from the University of Cambridge have unravelled one of the mysteries of electromagnetism, which could enable the design of antennas small enough to be integrated into an electronic chip. These ultra-small ...
General Physics
Apr 8, 2015
59
3712
Conduction and thermal radiation are two ways in which heat is transferred from one object to another: Conduction is the process by which heat flows between objects in physical contact, such as a pot of tea on a hot stove, ...
Nanophysics
Apr 7, 2015
1
1797
Radio waves disrupt the magnetic "compass" in robins, according to a study published on Wednesday that is likely to fuel debate about the safety of electronic devices.
Plants & Animals
May 7, 2014
1
1
