서브메뉴
검색
Non-contact Measurements of Nanoscale Phonon and Electron Transport with Ultrafast, Coherent Short-Wavelength Light
Non-contact Measurements of Nanoscale Phonon and Electron Transport with Ultrafast, Coherent Short-Wavelength Light
Detailed Information
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20250211152038
- ISBN
- 9798384052272
- DDC
- 530
- 서명/저자
- Non-contact Measurements of Nanoscale Phonon and Electron Transport with Ultrafast, Coherent Short-Wavelength Light
- 발행사항
- [Sl] : University of Colorado at Boulder, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 197 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 86-03, Section: B.
- 주기사항
- Advisor: Murnane, Margaret.
- 학위논문주기
- Thesis (Ph.D.)--University of Colorado at Boulder, 2024.
- 초록/해제
- 요약The miniaturization of technology over the past few decades has generated enormous demand for experimental techniques capable of resolving material dynamics at ever shorter length and time scales. Ultrafast, coherent ultraviolet light provides a window into microscopic dynamics, combining femtosecond pulse durations, short wavelengths and tunable sensitivity to electronic and thermal processes. This thesis furthers the development of novel ultraviolet metrology tools and their application to nanoscale phonon and electron transport, where confinement and nonequilibrium conditions give rise to surprising new phenomena. Using extreme ultraviolet scatterometry, we extract the thermal and elastic properties of a 3D phononic crystal metalattice, nanostructured on 100 nm length scales, and combine the results with previous experiments and atomistic simulations to propose a new effective description of highly-confined heat flow in nanostructured semiconductors. An interlude discusses the challenges associated with contact- and fabrication-based approaches to studying transport phenomena in the context of the wider array of materials appearing in modern nanotechnology. The final chapter introduces a new non-contact deep-ultraviolet (6.3 eV) transient grating experiment, capable of investigating nanoscale phonon and electron transport in ultrawide-bandgap materials at femtosecond timescales. This new technique bridges previous laboratory and facility-scale capabilities and provides new opportunities for studying emergent nanoscale transport phenomena of relevance to next-generation energy and semiconductor technologies.
- 일반주제명
- Physics
- 일반주제명
- Applied physics
- 일반주제명
- Nanotechnology
- 일반주제명
- Optics
- 키워드
- Scatterometry
- 기타저자
- University of Colorado at Boulder Physics
- 기본자료저록
- Dissertations Abstracts International. 86-03B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
008250123s2024 us c eng d■001000017162662
■00520250211152038
■006m o d
■007cr#unu||||||||
■020 ▼a9798384052272
■035 ▼a(MiAaPQ)AAI31336046
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a530
■1001 ▼aMcBennett, Brendan Gray.▼0(orcid)0000-0001-7947-6551
■24510▼aNon-contact Measurements of Nanoscale Phonon and Electron Transport with Ultrafast, Coherent Short-Wavelength Light
■260 ▼a[Sl]▼bUniversity of Colorado at Boulder▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a197 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 86-03, Section: B.
■500 ▼aAdvisor: Murnane, Margaret.
■5021 ▼aThesis (Ph.D.)--University of Colorado at Boulder, 2024.
■520 ▼aThe miniaturization of technology over the past few decades has generated enormous demand for experimental techniques capable of resolving material dynamics at ever shorter length and time scales. Ultrafast, coherent ultraviolet light provides a window into microscopic dynamics, combining femtosecond pulse durations, short wavelengths and tunable sensitivity to electronic and thermal processes. This thesis furthers the development of novel ultraviolet metrology tools and their application to nanoscale phonon and electron transport, where confinement and nonequilibrium conditions give rise to surprising new phenomena. Using extreme ultraviolet scatterometry, we extract the thermal and elastic properties of a 3D phononic crystal metalattice, nanostructured on 100 nm length scales, and combine the results with previous experiments and atomistic simulations to propose a new effective description of highly-confined heat flow in nanostructured semiconductors. An interlude discusses the challenges associated with contact- and fabrication-based approaches to studying transport phenomena in the context of the wider array of materials appearing in modern nanotechnology. The final chapter introduces a new non-contact deep-ultraviolet (6.3 eV) transient grating experiment, capable of investigating nanoscale phonon and electron transport in ultrawide-bandgap materials at femtosecond timescales. This new technique bridges previous laboratory and facility-scale capabilities and provides new opportunities for studying emergent nanoscale transport phenomena of relevance to next-generation energy and semiconductor technologies.
■590 ▼aSchool code: 0051.
■650 4▼aPhysics
■650 4▼aApplied physics
■650 4▼aNanotechnology
■650 4▼aOptics
■653 ▼aScatterometry
■653 ▼aSemiconductor technologies
■653 ▼aFemtosecond pulse durations
■690 ▼a0605
■690 ▼a0752
■690 ▼a0652
■690 ▼a0215
■71020▼aUniversity of Colorado at Boulder▼bPhysics.
■7730 ▼tDissertations Abstracts International▼g86-03B.
■790 ▼a0051
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17162662▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
Preview
Export
ChatGPT Discussion
AI Recommended Related Books
Buch Status
- Reservierung
- frei buchen
- Meine Mappe
- Erste Aufräumarbeiten Anfrage
- Non-Book Loan Application
- Nighttime Book Loan Application
Books borrowed together with this book
Related Popular Books
Available after logging in.