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Interplay of Polarization and Pulses: Space and Time-Resolved Optical Probes of Quantum Materials
Interplay of Polarization and Pulses: Space and Time-Resolved Optical Probes of Quantum Materials
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202103509
- ISBN
- 9798288861994
- DDC
- 530
- 저자명
- Sun, Yue.
- 서명/저자
- Interplay of Polarization and Pulses: Space and Time-Resolved Optical Probes of Quantum Materials
- 발행사항
- [Sl] : University of California, Berkeley, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 129 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-01, Section: B.
- 주기사항
- Advisor: Orenstein, Joseph;Saykally, Richard.
- 학위논문주기
- Thesis (Ph.D.)--University of California, Berkeley, 2025.
- 초록/해제
- 요약Far-field optical techniques offer unique advantages-precise control of polarization and sub-picosecond time resolution-that make them powerful tools for probing quantum materials. This thesis develops and applies a comprehensive suite of symmetry-sensitive optical probes, combining polarimetry with time-resolved pump-probe measurements, to investigate both the ground state properties and dynamical processes in a variety of condensed matter systems. By integrating spatial and temporal resolution, we extend the utility of ultrafast optical methods beyond conventional applications, enabling quantitative studies of transport phenomena with exceptional sensitivity near zero momentum.For ground-state characterization, we investigate how magnetization textures give rise to emergent gauge fields in the magnetic Weyl semimetal CeAlSi. Using scanning magneto-optic Kerr effect microscopy, we track the evolution of spin orientations across magnetic domain walls, offering insight into chiral textures and their associated gauge fields predicted in magnetic Weyl systems. We also demonstrate how our probes resolve outstanding questions raised by other measurements - for example, uncovering subtle magnetic ordering in EuCd2P2 that correlates with an anomalous peak in temperature-dependent resistivity.From the perspective of studying dynamics in quantum materials, we apply our space- and time-resolved probes to examine spin wavepacket propagation in ferromagnets (Fe3Sn2) and antiferromagnets (CrSBr), revealing dipolar magnon dispersions that lie beyond the reach of conventional scattering techniques. These results have important implications for magnonics, where coherent spin transport is essential for quantum transduction.Taken together, these results highlight the versatility and power of far-field optical techniques for uncovering new physical phenomena, informing theoretical models, and providing pathways for applications in quantum information science.
- 일반주제명
- Condensed matter physics
- 일반주제명
- Electromagnetics
- 일반주제명
- Quantum physics
- 키워드
- Antiferromagnets
- 키워드
- Ferromagnets
- 기타저자
- University of California, Berkeley Chemistry
- 기본자료저록
- Dissertations Abstracts International. 87-01B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
008260126s2025 us c eng d■001000017357419
■00520260202103509
■006m o d
■007cr#unu||||||||
■020 ▼a9798288861994
■035 ▼a(MiAaPQ)AAI32003164
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a530
■1001 ▼aSun, Yue.
■24510▼aInterplay of Polarization and Pulses: Space and Time-Resolved Optical Probes of Quantum Materials
■260 ▼a[Sl]▼bUniversity of California, Berkeley▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a129 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-01, Section: B.
■500 ▼aAdvisor: Orenstein, Joseph;Saykally, Richard.
■5021 ▼aThesis (Ph.D.)--University of California, Berkeley, 2025.
■520 ▼aFar-field optical techniques offer unique advantages-precise control of polarization and sub-picosecond time resolution-that make them powerful tools for probing quantum materials. This thesis develops and applies a comprehensive suite of symmetry-sensitive optical probes, combining polarimetry with time-resolved pump-probe measurements, to investigate both the ground state properties and dynamical processes in a variety of condensed matter systems. By integrating spatial and temporal resolution, we extend the utility of ultrafast optical methods beyond conventional applications, enabling quantitative studies of transport phenomena with exceptional sensitivity near zero momentum.For ground-state characterization, we investigate how magnetization textures give rise to emergent gauge fields in the magnetic Weyl semimetal CeAlSi. Using scanning magneto-optic Kerr effect microscopy, we track the evolution of spin orientations across magnetic domain walls, offering insight into chiral textures and their associated gauge fields predicted in magnetic Weyl systems. We also demonstrate how our probes resolve outstanding questions raised by other measurements - for example, uncovering subtle magnetic ordering in EuCd2P2 that correlates with an anomalous peak in temperature-dependent resistivity.From the perspective of studying dynamics in quantum materials, we apply our space- and time-resolved probes to examine spin wavepacket propagation in ferromagnets (Fe3Sn2) and antiferromagnets (CrSBr), revealing dipolar magnon dispersions that lie beyond the reach of conventional scattering techniques. These results have important implications for magnonics, where coherent spin transport is essential for quantum transduction.Taken together, these results highlight the versatility and power of far-field optical techniques for uncovering new physical phenomena, informing theoretical models, and providing pathways for applications in quantum information science.
■590 ▼aSchool code: 0028.
■650 4▼aCondensed matter physics
■650 4▼aElectromagnetics
■650 4▼aQuantum physics
■653 ▼aAntiferromagnets
■653 ▼aFerromagnets
■653 ▼aKerr effect microscopy
■690 ▼a0611
■690 ▼a0599
■690 ▼a0607
■71020▼aUniversity of California, Berkeley▼bChemistry.
■7730 ▼tDissertations Abstracts International▼g87-01B.
■790 ▼a0028
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17357419▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
