SHERP

Enhanced absorption of liquid thin layer on terahertz nanoantennas

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Authors
정지윤
Advisor
김대식
Major
자연과학대학 물리·천문학부(물리학전공)
Issue Date
2014
Publisher
서울대학교 대학원
Keywords
terahertz spectroscopyliquidsnano-slot antennas
Description
학위논문 (석사)-- 서울대학교 대학원 : 물리·천문학부(물리학전공), 2014. 2. 김대식.
Abstract
Absorption of terahertz electromagnetic waves by liquid thin layers on metallic nano-slot antennas is investigated. Nano-slot antennas, metallic film with nanometer-sized slots, are known to show strong resonance at certain frequency, and sensitivity to the dielectric environment. Liquid thin layer is formed using spin-coated PDMS and patterned silicon oxide, which prevent liquids from smearing out. In the presence of liquids the transmission spectra of nano-slot antennas show large amplitude modulations and peak shifts according to the dielectric properties of the liquids. The tendency becomes larger with smaller antenna width. With further optimizations in sealing and antenna structure, this scheme is expected to open up the possibility of measuring much more minute samples, such as a few-layer molecule layer.
Language
English
URI
http://hdl.handle.net/10371/131693
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College of Natural Sciences (자연과학대학)Dept. of Physics and Astronomy (물리·천문학부)Physics (물리학전공)Theses (Master's Degree_물리학전공)
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