Search
Menu
Lumencor Inc. - ZIVA Light Engine 3-24 LB

Antenna Produces High-Energy Terahertz Radiation

Facebook X LinkedIn Email
Researchers from the University of Electrocommunications in Tokyo and NEC Corp. in Kanagawa, Japan, have produced terahertz radiation with an energy density of 10 µJ/cm2 from a photoconductive semiconductor antenna.

Using 0.5-ps pulses from a 248-nm, 10-mJ KrF laser system, the team produced the high energy density by inducing coherently added emissions from more than 2000 photoconductive gaps on the chip. A chemical vapor-deposited film provided a threshold breakdown in the gaps high enough for an electric field stress of 2 x 106 V/cm to be applied.

The team, reporting in the Dec. 20 issue of Applied Optics, predicted that, by using a higher laser intensity, electric field and emission area, a focused intensity of several hundred megawatts per square centimeter may soon be achieved.
LPC/Photonics.com - Stay up to date NL

Published: April 2002
CommunicationsResearch & TechnologyTech Pulse

We use cookies to improve user experience and analyze our website traffic as stated in our Privacy Policy. By using this website, you agree to the use of cookies unless you have disabled them.