The spectrum for transmission in singlemode optical fibers has been broken ... as first window and second window. See satellite frequency bands. THIS DEFINITION IS FOR PERSONAL USE ONLY.

Also called a "frequency band." See frequency bands, spectrum, satellite frequency bands and optical bands. (2) A group of frequencies that occur naturally such as the audio spectrum. See audio.

Optical rectennas enhance solar energy conversion, utilizing advanced diodes for efficient energy harvesting, crucial for the ...