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Metallic Circular Disk Optical Anten...

Kemsri, Thitikorn.

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Metallic Circular Disk Optical Antenna of Surface Nano-Plasmonic Enhancement in Quantum Dot Infrared and GaAs P-I-N Photodetector.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Metallic Circular Disk Optical Antenna of Surface Nano-Plasmonic Enhancement in Quantum Dot Infrared and GaAs P-I-N Photodetector./
Author:	Kemsri, Thitikorn.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2019,
Description:	109 p.
Notes:	Source: Dissertations Abstracts International, Volume: 80-12, Section: B.
Contained By:	Dissertations Abstracts International80-12B.
Subject:	Electrical engineering. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=13860931
ISBN:	9781392263822

Metallic Circular Disk Optical Antenna of Surface Nano-Plasmonic Enhancement in Quantum Dot Infrared and GaAs P-I-N Photodetector.
Kemsri, Thitikorn.

Metallic Circular Disk Optical Antenna of Surface Nano-Plasmonic Enhancement in Quantum Dot Infrared and GaAs P-I-N Photodetector. - Ann Arbor : ProQuest Dissertations & Theses, 2019 - 109 p.

Source: Dissertations Abstracts International, Volume: 80-12, Section: B.

Thesis (Ph.D.)--University of Massachusetts Lowell, 2019.

This item must not be sold to any third party vendors.

In the semiconductor world, several kinds of detectors have been studied and invented for different usages. Such an infrared wavelength, researching the infrared photodetector has been continually investigated. Especially Quantum Dots Infrared Photodetectors (QDIPs) and P-I-N Photodetector (PIN), they will play significant roles in the light absorption by converting the photons into electrical signals.However, increasing the performance of the photodetector also has been researching until now. The one approach is Surface Plasmonic Resonance (SPR), which is an interaction between the metal and dielectric mediums leading to the electron oscillation, a resonant frequency with the strong electric field. In this proposal, the surface plasmonic structure was entirely fabricated into Metallic Circular Disk Antenna (MCDA) on the QDIPs and the GaAs PIN photodetector to induce the electron confinement and also electromagnetic field enhancement.The measurement took place in two sections by comparing the photodetectors with a plasmonic structure on the surface and none of the plasmonic structure as a reference. The first part was an angular dependence experiment by QDIPs to see the angular dependence corresponding to the MCDA. With the practical result of MCDA in QDIPs, the strong electric fields and current densities were a consequence of the plasmonic structures at larger incident angle 0, 30,45, and 60 degrees respectively in LWIR (7.6 um).The second part involved the nano-MCDA resulting in the fast response and induced E-field distribution of the GaAs PIN photodetector. Correlating with the nanoantenna on the GaAs PIN photodetector and a mode-lock femtosecond (fs) laser to frequency comb illumination, the surface plasmonic nanoantenna can bring about the faster response of the GaAs PIN than the reference in NWIR (850 nm) from 2.4 (GHz) to 4.2 GHz.Furthermore, we investigated the avalanche phenomenon on the GaAs PIN photodetector with the nanoantenna by implementing the high voltage (-27 to -30v.). The result came out: the nano-optical antenna can produce the enhancement for speed response in the harmonic frequency and the cut-off frequency from (2.4 GHz) to around 6 GHz under the avalanche phenomenon.

ISBN: 9781392263822Subjects--Topical Terms:

649834
Electrical engineering.

Metallic Circular Disk Optical Antenna of Surface Nano-Plasmonic Enhancement in Quantum Dot Infrared and GaAs P-I-N Photodetector.
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245 1 0 $a Metallic Circular Disk Optical Antenna of Surface Nano-Plasmonic Enhancement in Quantum Dot Infrared and GaAs P-I-N Photodetector.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2019
300 $a 109 p.
500 $a Source: Dissertations Abstracts International, Volume: 80-12, Section: B.
500 $a Publisher info.: Dissertation/Thesis.
500 $a Advisor: Lu, Xuejun.
502 $a Thesis (Ph.D.)--University of Massachusetts Lowell, 2019.
506 $a This item must not be sold to any third party vendors.
520 $a In the semiconductor world, several kinds of detectors have been studied and invented for different usages. Such an infrared wavelength, researching the infrared photodetector has been continually investigated. Especially Quantum Dots Infrared Photodetectors (QDIPs) and P-I-N Photodetector (PIN), they will play significant roles in the light absorption by converting the photons into electrical signals.However, increasing the performance of the photodetector also has been researching until now. The one approach is Surface Plasmonic Resonance (SPR), which is an interaction between the metal and dielectric mediums leading to the electron oscillation, a resonant frequency with the strong electric field. In this proposal, the surface plasmonic structure was entirely fabricated into Metallic Circular Disk Antenna (MCDA) on the QDIPs and the GaAs PIN photodetector to induce the electron confinement and also electromagnetic field enhancement.The measurement took place in two sections by comparing the photodetectors with a plasmonic structure on the surface and none of the plasmonic structure as a reference. The first part was an angular dependence experiment by QDIPs to see the angular dependence corresponding to the MCDA. With the practical result of MCDA in QDIPs, the strong electric fields and current densities were a consequence of the plasmonic structures at larger incident angle 0, 30,45, and 60 degrees respectively in LWIR (7.6 um).The second part involved the nano-MCDA resulting in the fast response and induced E-field distribution of the GaAs PIN photodetector. Correlating with the nanoantenna on the GaAs PIN photodetector and a mode-lock femtosecond (fs) laser to frequency comb illumination, the surface plasmonic nanoantenna can bring about the faster response of the GaAs PIN than the reference in NWIR (850 nm) from 2.4 (GHz) to 4.2 GHz.Furthermore, we investigated the avalanche phenomenon on the GaAs PIN photodetector with the nanoantenna by implementing the high voltage (-27 to -30v.). The result came out: the nano-optical antenna can produce the enhancement for speed response in the harmonic frequency and the cut-off frequency from (2.4 GHz) to around 6 GHz under the avalanche phenomenon.
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650 4 $a Nanotechnology. $3 526235
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856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=13860931