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High power, broadband terahertz, photoconductive antennas with chaotic shape electrodes

Patent image
NRL

A photoconductive antenna is described that includes a substrate that includes a pair of trenches. Furthermore, a pair of non-parallel electrodes, which can be designed with a chaotic electrode geometry, can each be deposited in one of the trenches, and can be configured to produce chaotic trajectories of incoherent electric currents. Finally, an insulation layer, which can be either a physical electrical insulation layer or an air gap, can be included between each of the pair of non-parallel electrodes and the trench walls. Overall, the thickness of the substrate, the thickness of the trenches, and the thickness of the non-parallel electrodes can each be optimized to produce a coherent terahertz beam.

Inventors: 
Wu, Dong Ho; Graber, Benjamin; Kim, Christopher
Patent Number: 
Technical domain: 
Optics
FIle Date: 
2015-05-06
Grant Date: 
2015-11-03
Grant time: 
181 days
Grant time percentile rank: 
3
Claim count percentile rank: 
3
Citations percentile rank: 
1
'Cited by' percentile rank: 
1
Assignee: 
US NAVY