Study on terahertz emission properties of bow-tie photoconductive antenna

Zhen Huang; Bin Yu; Guozhong Zhao; Cunlin Zhang; Lijie Cui; Yiyang Li

doi:10.1117/12.805658

9 February 2009 Study on terahertz emission properties of bow-tie photoconductive antenna

Zhen Huang, Bin Yu, Guozhong Zhao, Cunlin Zhang, Lijie Cui, Yiyang Li

Proceedings Volume 7158, 2008 International Conference on Optical Instruments and Technology: Microelectronic and Optoelectronic Devices and Integration; 715812 (2009) https://doi.org/10.1117/12.805658
Event: International Conference of Optical Instrument and Technology, 2008, Beijing, China

Abstract

The terahertz (THz) emission properties of four kinds of bow-tie photoconductive antennas are studied. The characteristic of THz radiation generated by them is compared. The emission spectra of the photoconductive antennas are obtained by THz time domain spectroscopy (TDS) technology. The corresponding frequency domain spectra are obtained by Fast Fourier Transformation (FFT). The results show that when we increase the bias voltage, the peak value of THz radiation is increased and tends to saturation when the pump power is strong enough. Under the same bias voltage and the pump power, the properties of THz radiation generated by four bow-tie photoconductor antennas are compared. It shows that under low bias voltage, the full width of half maximum (FWHM) of frequency a domain spectrum which is generated by small-aperture bow-tie photoconductor antenna is broader than that of the large aperture one. The gap size of small-aperture photoconductive antenna is smaller, the FWHW is broader. On the other hand, under the high bias voltage, the intensity of THz radiation of the large aperture photoconductor antenna is much larger than the small aperture one. Our results provide a reference to investigate and fabricate the high efficient of THz emission source.

Citation Download Citation

Zhen Huang, Bin Yu, Guozhong Zhao, Cunlin Zhang, Lijie Cui, and Yiyang Li "Study on terahertz emission properties of bow-tie photoconductive antenna", Proc. SPIE 7158, 2008 International Conference on Optical Instruments and Technology: Microelectronic and Optoelectronic Devices and Integration, 715812 (9 February 2009); https://doi.org/10.1117/12.805658

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
10 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Antennas

Terahertz radiation

Semiconductors

Photoresistors

Laser beam diagnostics

Sensors

Femtosecond phenomena

Show All Keywords

Keywords/Phrases

Search In:

Publication Years