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Characterization of Terahertz Emission from High Resistivity Fe-doped Bulk Ga0.69In0.31As Based Photoconducting Antennas

Part of the Springer Theses Book Series

DOI: 10.1007/978-1-4419-8198-1

ISBN: 978-1-4419-8197-4

Publisher: Springer New York - Springer Journals

Mar 1, 2011

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Chapter 1Introduction

Sengupta, Suranjana

Pages: 1 –7

[The generation and detection of terahertz (THz) frequency electromagnetic radiation and the study of materials interaction occurring in this frequency regime has been of considerable interest to the scientific community of late. The term terahertz is typically used to indicate the region of...
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Chapter 2Generation of Sub-Picosecond Terahertz Pulses

Sengupta, Suranjana

Pages: 9 –30

[Suzuki et al. [18] reported THz emission from Fe ion implanted Ga0.47In0.53As PC antennas triggered by 1.56 μm excitation pulses. The radiated field from the Fe ion implanted Ga0.47In0.53As had a reduced pulse width compared to that obtained from the unimplanted emitters. This reduction in pulse...
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Chapter 3Ultrafast Spectroscopy

Sengupta, Suranjana

Pages: 31 –34

[For our experimental purpose we assume that the carriers rapidly form a hot thermalized distribution following the excitation of the semiconductor sample by the pump pulse. This assumption is based on the fact that we conduct our experiments at high excitation densities that favor the quick...
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Chapter 4Experimental Techniques

Sengupta, Suranjana

Pages: 35 –44

[The phase modulation of the probe beam is analyzed by a quarter wave (λ/4) plate and the beam is then split into two beams of orthogonal polarizations by a Wollaston prism. At this point, the phase modulation of the probe beam is converted to an intensity modulation of the two orthogonal...
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Chapter 5Experimental Results

Sengupta, Suranjana

Pages: 45 –68

[In Chap. 2 we reviewed the theoretical model of THz emission from semi-large aperture photoconducting (PC) antennas. Typically such antennas are fabricated on semi-insulating (SI) GaAs or low-temperature (LT) GaAs semiconductor substrates that exhibit high resistivity and high photocarrier...
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Chapter 6Conclusions and Future Outlook

Sengupta, Suranjana

Pages: 69 –71

[This dissertation contains results obtained from investigating pulsed THz emission characteristics of semi-large aperture photoconducting (PC) antennas fabricated on Fe-doped bulk Ga0.69In0.31As substrate. The research is aimed at evaluating the impact of physical properties of a semi-large...

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