The commercialization of long-wavelength vertical-cavity surface-emitting lasers (VCSELs) is gaining new momentum as the telecoms market shifts from long-haul applications to local and access ...

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

The Owens Valley Long Wavelength Array (OVRO-LWA) is a low-frequency radio interferometer composed of 288 crossed broadband dipole antennas. The OVRO-LWA band covers 58 MHz of instantaneous bandwidth ...

As the light was shifted towards the red end of the spectrum (lower frequency/longer wavelength) this phenomenon was termed 'redshift'. Figure caption, Lower diagram shows spectrum of light ...

This work reports the design of an efficient multiband UC system based on Ln3+/Yb3+-doped core-shell upconversion ...

Infrared (IR) light is a type of electromagnetic radiation that has longer wavelengths than visible light, but shorter wavelengths than radio light. Mid-IR sits in the middle of the infrared ...