Referenced Items are not available for this document.
We propose a terahertz (THz)-band engineering technique based on generation of specifically designed time-domain radiation. The desired time-domain radiation is formed by combining the time-delayed outputs of an array of photoconductive antennas. We have employed this technique to generate tunable narrowband THz radiation. By using an array of identical photoconductive antennas with identical spacings, we have demonstrated a 12.5-mW output peak-power over 0.05-THz bandwidth and a tuning range of 0.65-1.4 THz. Considering the 2.5-THz bandwidth of each individual photoconductive antenna, 50 times higher power efficiency is achieved as a result of radiation-band shaping.
Published in:
Photonics Technology Letters, IEEE
(Volume:21
,
Issue:
13
)
Date of Publication: July1, 2009
- Page(s):
- 830 - 832
- ISSN :
- 1041-1135
- INSPEC Accession Number:
- 10728538
- Digital Object Identifier :
- 10.1109/LPT.2009.2019620
- Product Type:
- Journals & Magazines
- Date of Publication :
- 10 April 2009
- Date of Current Version :
- 10 June 2009
- Issue Date :
- July1, 2009
- Sponsored by :
- IEEE Photonics Society
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