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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...
Fundamental Limits of Optical Frequency Comb Interferometry and Spectroscopy With Coherent, Thermal, and Quantum Light

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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 metrology
키워드  
Quantum optics
키워드  
Astronomical spectroscopy
키워드  
Coherent light
기타저자  
University of Colorado at Boulder Electrical Engineering
기본자료저록  
Dissertations Abstracts International. 86-06B.
전자적 위치 및 접속  
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MARC

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■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.

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