From Name:
From Email:
To Name:
To Email:

Optional Message:


Physicists crate low-power all-optical switch

from University of Maryland

Physicists at the Maryland-NIST Joint Quantum Institute have developed a switch that can steer a beam of light from one direction to another in only 120 picoseconds and requires very little power. This new switch consists of a quantum dot of indium and arsenic placed inside a resonant cavity. The quantum dot sits inside a photonic crystal that only transmits light in a narrow wavelength band. Previous optical switches have been able to work only by using bulky nonlinear-crystals and high input power. But so far, this milestone can only be achieved at 40 K, whereas higher power similar switches work at room temperature. more


Powered by MultiBriefs
7701 Las Colinas Blvd., Ste. 800, Irving, TX 75063