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Fundamental Limits of Optical Frequency Comb Interferometry and Spectroscopy With Coherent, Thermal, and Quantum Light
Fundamental Limits of Optical Frequency Comb Interferometry and Spectroscopy With Coherent, Thermal, and Quantum Light
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20250211153041
- ISBN
- 9798346877486
- DDC
- 535
- 저자명
- Tsao, Eugene J.
- 서명/저자
- Fundamental Limits of Optical Frequency Comb Interferometry and Spectroscopy With Coherent, Thermal, and Quantum Light
- 발행사항
- [Sl] : University of Colorado at Boulder, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 203 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 86-06, Section: B.
- 주기사항
- Advisor: Diddams, Scott A.
- 학위논문주기
- Thesis (Ph.D.)--University of Colorado at Boulder, 2024.
- 초록/해제
- 요약The measurement and manipulation of coherent optical fields have been transformed by the optical frequency comb. Today, the optical frequency comb grants measurements precise enough to count individual cycles of light as well as the generation of nearly any coherent electromagnetic field from the ultraviolet through the infrared. These capabilities have enabled the most precise realizations and comparisons of time, precision spectroscopy over broad bandwidths, and the ability to convert stable signals between optical and microwave fields-seamlessly connecting the entire electromagnetic spectrum from hertz (100) to petahertz (1015). These applications involve the interference of a frequency comb with another coherent light source, such as another frequency comb or a single-frequency continuous-wave laser. However, coherent light represents only one type of light. The vast majority of light emanates from "black bodies" such as stars, which is in a thermal state as opposed to a coherent state, and carries profound information about the universe and humanity's place within it. Other types of light defy classical electromagnetism and are known as non-classical or quantum light. Such quantum light may play central roles in quantum communication, quantum computation, and quantum-enhanced metrology. In this thesis, the use of the optical frequency comb in the interferometric measurement of thermal and quantum light is investigated, with a focus on assessing fundamental limits to the sensitivity of such measurements.In order to measure thermal light, a technique called dual-comb correlation spectroscopy is explored. This technique entails heterodyne measurement of the field of thermal light and subsequently correlation of the field in time. This process reveals the spectrum of thermal light at high resolution and across broad bandwidths. New theoretical work uncovers previously unknown fundamental limits on sensitivity when measuring realistically weak thermal light. Experimental investigation verifies this scaling and is accompanied by a demonstration of spectroscopy at the equivalent power spectral density of our Sun, realizing a greater than 1000x sensitivity increase over past demonstrations of this technique. These insights pave the way for expansion of this technique to comb-based spatial correlation of thermal fields. This advancement would allow for extended baseline synthetic aperture hyperspectral imaging throughout the optical spectrum, facilitating novel and profound observations of the universe.The use of frequency combs for the measurement of quantum light is also investigated. This scenario breaks typical quantum optics assumptions, such as large and mode-matched local oscillators, and necessitates new quantum measurement operators. Such measurement operators are derived, which not only describe homodyne measurements on any quantum state of light with a frequency comb local oscillator, but also indicate that the shot noise limit generally reached in comb-based measurements of coherent light (such as in continuous-wave laser heterodyne and dual-comb spectroscopy) does not correspond to the quadrature or coherent state-overlap description standard in quantum optics. Efforts to experimentally reach this ``standard'' quantum limit demonstrate a significant improvement in the signal-to-noise ratio over the conventional comb-based shot noise limit, paving the way for lower-power portable optical clocks and quantum-enhanced frequency-comb metrology.
- 일반주제명
- Optics
- 일반주제명
- Physics
- 일반주제명
- Astronomy
- 일반주제명
- Quantum physics
- 일반주제명
- Electrical engineering
- 키워드
- Frequency combs
- 키워드
- Quantum optics
- 키워드
- Coherent light
- 기타저자
- University of Colorado at Boulder Electrical Engineering
- 기본자료저록
- Dissertations Abstracts International. 86-06B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520250211153041
■006m o d
■007cr#unu||||||||
■020 ▼a9798346877486
■035 ▼a(MiAaPQ)AAI31638996
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a535
■1001 ▼aTsao, Eugene J.
■24510▼aFundamental Limits of Optical Frequency Comb Interferometry and Spectroscopy With Coherent, Thermal, and Quantum Light
■260 ▼a[Sl]▼bUniversity of Colorado at Boulder▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a203 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 86-06, Section: B.
■500 ▼aAdvisor: Diddams, Scott A.
■5021 ▼aThesis (Ph.D.)--University of Colorado at Boulder, 2024.
■520 ▼aThe measurement and manipulation of coherent optical fields have been transformed by the optical frequency comb. Today, the optical frequency comb grants measurements precise enough to count individual cycles of light as well as the generation of nearly any coherent electromagnetic field from the ultraviolet through the infrared. These capabilities have enabled the most precise realizations and comparisons of time, precision spectroscopy over broad bandwidths, and the ability to convert stable signals between optical and microwave fields-seamlessly connecting the entire electromagnetic spectrum from hertz (100) to petahertz (1015). These applications involve the interference of a frequency comb with another coherent light source, such as another frequency comb or a single-frequency continuous-wave laser. However, coherent light represents only one type of light. The vast majority of light emanates from "black bodies" such as stars, which is in a thermal state as opposed to a coherent state, and carries profound information about the universe and humanity's place within it. Other types of light defy classical electromagnetism and are known as non-classical or quantum light. Such quantum light may play central roles in quantum communication, quantum computation, and quantum-enhanced metrology. In this thesis, the use of the optical frequency comb in the interferometric measurement of thermal and quantum light is investigated, with a focus on assessing fundamental limits to the sensitivity of such measurements.In order to measure thermal light, a technique called dual-comb correlation spectroscopy is explored. This technique entails heterodyne measurement of the field of thermal light and subsequently correlation of the field in time. This process reveals the spectrum of thermal light at high resolution and across broad bandwidths. New theoretical work uncovers previously unknown fundamental limits on sensitivity when measuring realistically weak thermal light. Experimental investigation verifies this scaling and is accompanied by a demonstration of spectroscopy at the equivalent power spectral density of our Sun, realizing a greater than 1000x sensitivity increase over past demonstrations of this technique. These insights pave the way for expansion of this technique to comb-based spatial correlation of thermal fields. This advancement would allow for extended baseline synthetic aperture hyperspectral imaging throughout the optical spectrum, facilitating novel and profound observations of the universe.The use of frequency combs for the measurement of quantum light is also investigated. This scenario breaks typical quantum optics assumptions, such as large and mode-matched local oscillators, and necessitates new quantum measurement operators. Such measurement operators are derived, which not only describe homodyne measurements on any quantum state of light with a frequency comb local oscillator, but also indicate that the shot noise limit generally reached in comb-based measurements of coherent light (such as in continuous-wave laser heterodyne and dual-comb spectroscopy) does not correspond to the quadrature or coherent state-overlap description standard in quantum optics. Efforts to experimentally reach this ``standard'' quantum limit demonstrate a significant improvement in the signal-to-noise ratio over the conventional comb-based shot noise limit, paving the way for lower-power portable optical clocks and quantum-enhanced frequency-comb metrology.
■590 ▼aSchool code: 0051.
■650 4▼aOptics
■650 4▼aPhysics
■650 4▼aAstronomy
■650 4▼aQuantum physics
■650 4▼aElectrical engineering
■653 ▼aFrequency combs
■653 ▼aQuantum metrology
■653 ▼aQuantum optics
■653 ▼aAstronomical spectroscopy
■653 ▼aCoherent light
■690 ▼a0752
■690 ▼a0605
■690 ▼a0606
■690 ▼a0599
■690 ▼a0544
■71020▼aUniversity of Colorado at Boulder▼bElectrical Engineering.
■7730 ▼tDissertations Abstracts International▼g86-06B.
■790 ▼a0051
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17164755▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.


