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Visible Photonics in Thin-Film Lithium Niobate and Transition Metal Dichalcogenides for Classical and Quantum Information Applications
Visible Photonics in Thin-Film Lithium Niobate and Transition Metal Dichalcogenides for Classical and Quantum Information Applications
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20250211151438
- ISBN
- 9798382776767
- DDC
- 535
- 서명/저자
- Visible Photonics in Thin-Film Lithium Niobate and Transition Metal Dichalcogenides for Classical and Quantum Information Applications
- 발행사항
- [Sl] : Harvard University, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 107 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 85-12, Section: B.
- 주기사항
- Advisor: Loncar, Marko.
- 학위논문주기
- Thesis (Ph.D.)--Harvard University, 2024.
- 초록/해제
- 요약Visible to near infrared (VNIR) light is used in domains ranging from short reach interconnects to interstellar spectroscopy. Despite the widespread use of these wavelengths, integrated photonic components operating in this regime have found significantly less utility. This is in part because the material systems commonly used to realize these components are themselves limited. In this thesis, I address this challenge by developing VNIR photonics in two emerging material platforms offering unique properties: thin-film lithium niobate (TFLN) and two-dimensional transition metal dichalcogenides (TMDCs). In particular, I demonstrate low-loss and high-efficiency electro-optic circuits operating at VNIR wavelengths in thin film lithium niobate. I begin by demonstrating modulators exhibiting sub-1 volt drive voltages (as low as 0.42 V·cm), and use these to demonstrate the first reported integrated TFLN electro optic frequency combs operating at visible wavelengths. I then report on processes to ensure these components have both 1) low optical loss and 2) electro-optic stability by exploring the impact of standard nanofabrication processes on device performance. This study allows me to demonstrate VNIR circuits with propagation losses as low as 0.15 dB/cm, and stable electro-optic response down to sub-Hz drive frequencies. Using these improvements, I design and fabricate VNIR components useful for quantum information applications, including low insertion loss couplers ( 40 GHz) amplitude and phase modulators, and on-chip switches. Additionally, I use these components to build circuits such as multi-modulator units that enable input VNIR laser light to be carved in the time domain and subsequently shifted in the frequency domain - all on a single chip. Finally, I turn to another emerging material platform, two-dimensional tungsten diselenide (WSe2), and explore the impact of strain on its VNIR optical response. This study reveals that localized (∼ 100 nm) strain can drastically tune the VNIR emission of WSe2 and helps provide insight into the origin of bright single photon emitters in this system.
- 일반주제명
- Optics
- 일반주제명
- Materials science
- 일반주제명
- Quantum physics
- 일반주제명
- Analytical chemistry
- 키워드
- High bandwidth
- 기타저자
- Harvard University Engineering and Applied Sciences - Applied Physics
- 기본자료저록
- Dissertations Abstracts International. 85-12B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
008250123s2024 us c eng d■001000017161740
■00520250211151438
■006m o d
■007cr#unu||||||||
■020 ▼a9798382776767
■035 ▼a(MiAaPQ)AAI31295835
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a535
■1001 ▼aRenaud, Dylan Levi.▼0(orcid)0000-0002-7709-9606
■24510▼aVisible Photonics in Thin-Film Lithium Niobate and Transition Metal Dichalcogenides for Classical and Quantum Information Applications
■260 ▼a[Sl]▼bHarvard University▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a107 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 85-12, Section: B.
■500 ▼aAdvisor: Loncar, Marko.
■5021 ▼aThesis (Ph.D.)--Harvard University, 2024.
■520 ▼aVisible to near infrared (VNIR) light is used in domains ranging from short reach interconnects to interstellar spectroscopy. Despite the widespread use of these wavelengths, integrated photonic components operating in this regime have found significantly less utility. This is in part because the material systems commonly used to realize these components are themselves limited. In this thesis, I address this challenge by developing VNIR photonics in two emerging material platforms offering unique properties: thin-film lithium niobate (TFLN) and two-dimensional transition metal dichalcogenides (TMDCs). In particular, I demonstrate low-loss and high-efficiency electro-optic circuits operating at VNIR wavelengths in thin film lithium niobate. I begin by demonstrating modulators exhibiting sub-1 volt drive voltages (as low as 0.42 V·cm), and use these to demonstrate the first reported integrated TFLN electro optic frequency combs operating at visible wavelengths. I then report on processes to ensure these components have both 1) low optical loss and 2) electro-optic stability by exploring the impact of standard nanofabrication processes on device performance. This study allows me to demonstrate VNIR circuits with propagation losses as low as 0.15 dB/cm, and stable electro-optic response down to sub-Hz drive frequencies. Using these improvements, I design and fabricate VNIR components useful for quantum information applications, including low insertion loss couplers ( 40 GHz) amplitude and phase modulators, and on-chip switches. Additionally, I use these components to build circuits such as multi-modulator units that enable input VNIR laser light to be carved in the time domain and subsequently shifted in the frequency domain - all on a single chip. Finally, I turn to another emerging material platform, two-dimensional tungsten diselenide (WSe2), and explore the impact of strain on its VNIR optical response. This study reveals that localized (∼ 100 nm) strain can drastically tune the VNIR emission of WSe2 and helps provide insight into the origin of bright single photon emitters in this system.
■590 ▼aSchool code: 0084.
■650 4▼aOptics
■650 4▼aMaterials science
■650 4▼aQuantum physics
■650 4▼aAnalytical chemistry
■653 ▼aThin-film lithium niobate
■653 ▼aInterstellar spectroscopy
■653 ▼aQuantum information applications
■653 ▼aHigh bandwidth
■653 ▼aTransition metal dichalcogenides
■690 ▼a0752
■690 ▼a0599
■690 ▼a0794
■690 ▼a0486
■71020▼aHarvard University▼bEngineering and Applied Sciences - Applied Physics.
■7730 ▼tDissertations Abstracts International▼g85-12B.
■790 ▼a0084
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17161740▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
