公开(公告)号：EP1606856A2

公开(公告)日：2005-12-21

申请号：EP04722890.3

申请日：2004-03-24

申请人： CAMBRIDGE UNIVERSITY TECHNICAL SERVICES LIMITED ,  THE UNIVERSITY OF LEEDS

发明人： SHEN, Yao-chun ,  LINFIELD, Edmund Harold ,  DAVIS, Alexander Giles

IPC分类号： H01Q9/28 ,  H01Q1/00 ,  G01N21/00

CPC分类号： H01S1/02 ,  G01N21/3586 ,  H01L33/0004 ,  H01Q3/2676 ,  H01Q19/10

摘要： The invention relates to improved terahertz radiation sources and associated methods. A terahertz radiation source is described, comprising: an emitter (202) comprising a semiconductor material (12) ; a pair of electrodes (204a, b) on a face of said semiconductor, said pair of electrodes defining a gap between said electrodes; a pulsed light source input for illuminating said semiconductor so as to generate terahertz readiation (210) in said semiconductor by the photoconductive creation of very short (femtosecond) electromagnetic pulses; and a radiation collector (212) to collect said terahertz radiation; and wherein said radiation collector is disposed on the same side of said semiconductor as said electrodes. A related method of providing terahertz radiation is also described.