Optical measurements of three dimensional temperature distributions around gold nanorods immersed in water = 굴절률 측정을 통한 물의 삼차원 온도분포 이미징 및 정량분석 기술 개발과 응용

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Measurement and control of the temperature in microscopic systems are fundamentally important in science and engineering, with increasing number of diverse applications, including photothermal therapy, inhibition of neural activity, drug delivery, and micro fluidics. Yet, measurement of three-dimensional (3D) temperature distribution in microscopic systems has not been demonstrated. Previous approaches, such as infrared radiometry, fluorescent thermometers and quantitative phase microscopy, measures only 2D distributions with complicated assumptions. Here, we propose and experimentally demonstrate the measurements of 3D temperature distribution by exploiting temperature dependency of refractive index (RI). By measuring RI distribution, 3D temperature distributions of water above a glass substrate coated with gold nanorods are quantitatively obtained with temperature range and sensitivity of $100^\circ C$ and $2.88^\circ C$, respectively. From the obtained 3D temperature distributions, various physical and thermodynamic properties including the maximum temperature, heat flux density and thermal conductivity are extracted and analyzed quantitatively.
Advisors
Park, YongKeunresearcher박용근researcher
Description
한국과학기술원 :물리학과,
Publisher
한국과학기술원
Issue Date
2018
Identifier
325007
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 물리학과, 2018.2,[iv, 21 p. :]

Keywords

Gold nanoparticle▼aPhotothermal effect▼a3D Temperature distribution▼aOptical diffraction tomography; 금 나노입자▼a광열효과▼a삼차원 온도분포▼a광 회절 단층촬영

URI
http://hdl.handle.net/10203/266049
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=733796&flag=dissertation
Appears in Collection
PH-Theses_Master(석사논문)
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