Radiation within the visible spectrum can appear black if it is low in power – more specifically, lower in power than its ...

THz waves, located in the far-infrared region of the electromagnetic spectrum, can be used to perform non-invasive imaging through opaque materials for security and quality control applications.

Whereas the absorption of infrared radiation in a solid is typically ... of terahertz radiation The terahertz region of the electromagnetic spectrum between 0.2 THz and 2 THz has been neglected ...

Researchers from Tokyo Metropolitan University have developed a new dye that can strongly absorb second near-IR radiation and transform it to heat. Starting with a dye from the bile pigment family, ...

THz waves, located in the far-infrared region of the electromagnetic spectrum, can be used to perform non-invasive imaging through opaque materials for security and quality control applications.