DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | 장무석 | - |
dc.contributor.author | Oh, Jae-Yeon | - |
dc.contributor.author | 오재연 | - |
dc.date.accessioned | 2024-07-30T19:30:57Z | - |
dc.date.available | 2024-07-30T19:30:57Z | - |
dc.date.issued | 2024 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=1096665&flag=dissertation | en_US |
dc.identifier.uri | http://hdl.handle.net/10203/321448 | - |
dc.description | 학위논문(석사) - 한국과학기술원 : 바이오및뇌공학과, 2024.2,[iii, 17 p. :] | - |
dc.description.abstract | Noninvasive light focusing inside the scattering media has been developed such as time-reversed ultrasonically encoded (TRUE) optical focusing, which uses ultrasound as an guide-star. Acousto-optic imaging (AO) is a promising technique that is able to tag the photon in a localized manner, however, the spatial resolution of the technique is limited to the diffraction limit of the ultrasound ($~30 \mu m$ for $50 MHz$). In Raman-Nath theory, it was demonstrated that the nonlinear response of the AO modulation efficiency to the ultrasound pressure occurs, resulting in a reduction of the tagged zone size. We demonstrated that the combined approach of TRUE focusing and nonlinear response can reduce the focal spot size by about 30% compared to that of the conventional TRUE light focus. | - |
dc.language | eng | - |
dc.publisher | 한국과학기술원 | - |
dc.subject | 광학 영상▼a고심도 영상▼a음향-광 현상▼a산란▼a비선형 관계 | - |
dc.subject | optical imaging▼adeep-tissue imaging▼aacousto-optic phenomena▼ascattering▼anonlinear relationship | - |
dc.title | Development of high-resolution deep tissue optical focusing that combines $2^nd$-order acousto-optic signal measurement and optical phase conjugation | - |
dc.title.alternative | 고차 음향-광 측정 기술과 광 위상 변조 기술을 결합한 고심도·고해상 광 에너지 집속 기술 | - |
dc.type | Thesis(Master) | - |
dc.identifier.CNRN | 325007 | - |
dc.description.department | 한국과학기술원 :바이오및뇌공학과, | - |
dc.contributor.alternativeauthor | Jang, Moo-Seok | - |
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