Efficient photoconductive terahertz source using line excitation
Optics Letters, Vol. 30, Issue 18, pp. 2490-2492 (2005)
http://dx.doi.org/10.1364/OL.30.002490
Acrobat PDF (73 KB)
Abstract
We report significant improvement in terahertz (THz) power and efficiency using photoconductive sources by use of a spatially extended line source excitation and the trap enhanced field effect that occurs in sources made on semi-insulating GaAs. The combination of high electric fields and reduced screening effects allows 10 µW of THz power to be generated with 14 mW of absorbed optical power, demonstrating nearly 0.1% optical-to-THz conversion efficiency.
© 2005 Optical Society of America
OCIS Codes
(260.3090) Physical optics : Infrared, far
(320.7120) Ultrafast optics : Ultrafast phenomena
Citation
Joong H. Kim, Arup Polley, and Stephen E. Ralph, "Efficient photoconductive terahertz source using line excitation," Opt. Lett. 30, 2490-2492 (2005)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-30-18-2490
You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
Related Journal Articles 
- Spatiotemporal transformations of ultrashort terahertz pulses (JOSAB)
- Near-field propagation of terahertz pulses from a large-aperture antenna (OL)
- Grating-Assisted Coupling of Terahertz Waves into a Dielectric Waveguide Studied by Terahertz Time-Domain Spectroscopy (AO)
- Terahertz-pulse generation by photoionization of air with laser pulses composed of both fundamental and second-harmonic waves (OL)
- Excitation-density-dependent generation of broadband terahertz radiation in an asymmetrically excited photoconductive antenna (OL)
Related Conference Papers
- Intra- and Intermolecular THz Deformation Modes in Biomolecular Crystals: The Role of Hydrogen Bonds
- Direct Writing of Nanoporous Capillaries Inside Fused Silica Using a Focused Femtosecond Laser Beam
- Characterization of Nanoscale Structures Observed in Femtosecond Laser Micromachining
- Terahertz Biochip for Illicit Drug Detection
- Polarization Analysis of THz Generated by Four Wave Mixing in Air
« Previous Article | Next Article »
OSA is a member of 