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Designing Broadband Dielectric Mirrors Using Three-Dimensional Periodic Nanolattices
Designing Broadband Dielectric Mirrors Using Three-Dimensional Periodic Nanolattices
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260311091538.5
- ISBN
- 9798270232078
- DDC
- 620.1
- 서명/저자
- Designing Broadband Dielectric Mirrors Using Three-Dimensional Periodic Nanolattices / Vijay Anirudh Premnath
- 발행사항
- [Sl] : The University of Texas at Austin, 2025
- 형태사항
- 1 electronic resource (199 pages)
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-06, Section: B.
- 주기사항
- Advisors: Chang, Chih-Hao Committee members: Cullinan, Michael; Wasserman, Daniel; Cullinan, Michael.
- 학위논문주기
- - Ph.D. : The University of Texas at Austin, 2025.
- 초록/해제
- 요약This dissertation explores the design, simulation and fabrication of multilayer nanophotonic structures using ultra-low refractive index lattices, with indices as low as 1.0409, fabricated using a combination of lithography, atomic layer deposition and electron beam evaporation. Spectroscopic ellipsometry is effectively utilized to study the isotropic effective medium index and the birefringence characteristics of lattices using Cauchy material models. The optical behavior of the lattices is performed using finite-difference-time-domain modeling and transfer matrix method. The variation of process and geometric parameters and their influence on the mechanical, thermal and optical properties of the lattices are explored. Characterization of optical properties is performed using spectrophotometer in the ultraviolet, visible, and near infrared range, and subsequently these lattices are stacked with high index solid layers to achieve a high refractive index mismatch. This index mismatch is efficiently utilized to fabricate broadband Bragg reflectors, with just six stacks of alternating layers of high/low index pairs, with applications in nanophotonic elements such as waveguide fabrication. Moreover, the thermal conductivity of these lattices is examined using Raman spectroscopy to understand the radiative cooling effect of highly porous nanolattices.
- 언어주기
- English
- 일반주제명
- Materials science
- 일반주제명
- Analytical chemistry
- 일반주제명
- Nanoscience
- 키워드
- Nanolattices
- 기타저자
- The University of Texas at Austin Mechanical Engineering
- 기본자료저록
- Dissertations Abstracts International. 87-06B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■007cr|nu||||||||
■020 ▼a9798270232078
■040 ▼aMiAaPQD▼beng▼cMiAaPQD▼erda
■082 ▼a620.1
■1001 ▼aPremnath, Vijay Anirudh▼eauthor.
■24510▼aDesigning Broadband Dielectric Mirrors Using Three-Dimensional Periodic Nanolattices ▼cVijay Anirudh Premnath
■260 ▼a[Sl]▼bThe University of Texas at Austin▼c2025
■264 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a1 electronic resource (199 pages)
■336 ▼atext▼btxt▼2rdacontent
■337 ▼acomputer▼bc▼2rdamedia
■338 ▼aonline resource▼bcr▼2rdacarrier
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-06, Section: B.
■500 ▼aAdvisors: Chang, Chih-Hao Committee members: Cullinan, Michael; Wasserman, Daniel; Cullinan, Michael.
■5021 ▼bPh.D.▼cThe University of Texas at Austin▼d2025.
■520 ▼aThis dissertation explores the design, simulation and fabrication of multilayer nanophotonic structures using ultra-low refractive index lattices, with indices as low as 1.0409, fabricated using a combination of lithography, atomic layer deposition and electron beam evaporation. Spectroscopic ellipsometry is effectively utilized to study the isotropic effective medium index and the birefringence characteristics of lattices using Cauchy material models. The optical behavior of the lattices is performed using finite-difference-time-domain modeling and transfer matrix method. The variation of process and geometric parameters and their influence on the mechanical, thermal and optical properties of the lattices are explored. Characterization of optical properties is performed using spectrophotometer in the ultraviolet, visible, and near infrared range, and subsequently these lattices are stacked with high index solid layers to achieve a high refractive index mismatch. This index mismatch is efficiently utilized to fabricate broadband Bragg reflectors, with just six stacks of alternating layers of high/low index pairs, with applications in nanophotonic elements such as waveguide fabrication. Moreover, the thermal conductivity of these lattices is examined using Raman spectroscopy to understand the radiative cooling effect of highly porous nanolattices.
■546 ▼aEnglish
■590 ▼aSchool code: 0227
■650 4▼aMaterials science
■650 4▼aAnalytical chemistry
■650 4▼aNanoscience
■653 ▼aRaman spectroscopy
■653 ▼aNanophotonic structures
■653 ▼aNanolattices
■653 ▼aSpectroscopic ellipsometry
■653 ▼aCauchy material models
■7102 ▼aThe University of Texas at Austin▼bMechanical Engineering.▼edegree granting institution.
■7201 ▼aChang, Chih-Hao▼edegree supervisor.
■7730 ▼tDissertations Abstracts International▼g87-06B.
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17361217▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
