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Nonlinear Propagation of Orbital Angular Momentum Light in Turbulence and Fiber
Nonlinear Propagation of Orbital Angular Momentum Light in Turbulence and Fiber
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20250211150931
- ISBN
- 9798383173688
- DDC
- 530
- 저자명
- Elder, Henry F.
- 서명/저자
- Nonlinear Propagation of Orbital Angular Momentum Light in Turbulence and Fiber
- 발행사항
- [Sl] : University of Maryland, College Park, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 129 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 85-12, Section: B.
- 주기사항
- Advisor: Sprangle, Phillip.
- 학위논문주기
- Thesis (Ph.D.)--University of Maryland, College Park, 2024.
- 초록/해제
- 요약Light that carries orbital angular momentum (OAM), also referred to as optical vortices or twisted light, is characterized by a helical or twisted wavefront ∝exp[imφ]. In contrast to spin angular momentum (SAM), where photons are limited to two states, OAM allows for, in principle, an infinite set of spatially orthogonal states. OAM-carrying light has found applications ranging from quantum key distribution in free space and guided-wave communication systems, particle trapping and optical tweezers, nanoscopy, and remote sensing. Understanding how OAM light propagates through complex environments, and how to efficiently generate particular OAM states, is critical for any such application. In the first part of this dissertation, we describe how OAM light propagates through a turbulent atmosphere. We build analytic models which describe (1) the OAM mode mixing caused by turbulence, (2) the evolution of short, high-power OAM pulses undergoing the effects of self-phase modulation (SPM) and group velocity dispersion (GVD), and (3) the evolution of high-power Gaussian pulses including SPM, GVD, and turbulence. The models are validated against both experimental data and nonlinear, turbulent pulse propagation simulation programs,the latter of which we have made freely available. We also explore how self-focusing can minimize certain deleterious effects of turbulence for OAM light.The second part of this dissertation considers nonlinear effects of OAM light propagating in azimuthally symmetric waveguides. Such waveguides have so-called spin-orbit (SO) modes, which are quantized based on their total angular momentum (TAM). We develop a generalized theory of four wave mixing-based parametric amplification of SO modes and show that these processes conserve TAM, but under certain circumstances can be taken to conserve SAM andOAM independently. Our theory is validated against a nonlinear multimode beam propagation simulation program which we developed and, again, have made freely available.
- 일반주제명
- Physics
- 일반주제명
- Optics
- 일반주제명
- Theoretical physics
- 일반주제명
- Electrical engineering
- 키워드
- Angular momentum
- 키워드
- Four wave mixing
- 키워드
- Kerr
- 키워드
- Nonlinear optics
- 키워드
- Turbulence
- 기타저자
- University of Maryland, College Park Physics
- 기본자료저록
- Dissertations Abstracts International. 85-12B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520250211150931
■006m o d
■007cr#unu||||||||
■020 ▼a9798383173688
■035 ▼a(MiAaPQ)AAI30990306
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a530
■1001 ▼aElder, Henry F.▼0(orcid)0000-0001-6628-7081
■24510▼aNonlinear Propagation of Orbital Angular Momentum Light in Turbulence and Fiber
■260 ▼a[Sl]▼bUniversity of Maryland, College Park▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a129 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 85-12, Section: B.
■500 ▼aAdvisor: Sprangle, Phillip.
■5021 ▼aThesis (Ph.D.)--University of Maryland, College Park, 2024.
■520 ▼aLight that carries orbital angular momentum (OAM), also referred to as optical vortices or twisted light, is characterized by a helical or twisted wavefront ∝exp[imφ]. In contrast to spin angular momentum (SAM), where photons are limited to two states, OAM allows for, in principle, an infinite set of spatially orthogonal states. OAM-carrying light has found applications ranging from quantum key distribution in free space and guided-wave communication systems, particle trapping and optical tweezers, nanoscopy, and remote sensing. Understanding how OAM light propagates through complex environments, and how to efficiently generate particular OAM states, is critical for any such application. In the first part of this dissertation, we describe how OAM light propagates through a turbulent atmosphere. We build analytic models which describe (1) the OAM mode mixing caused by turbulence, (2) the evolution of short, high-power OAM pulses undergoing the effects of self-phase modulation (SPM) and group velocity dispersion (GVD), and (3) the evolution of high-power Gaussian pulses including SPM, GVD, and turbulence. The models are validated against both experimental data and nonlinear, turbulent pulse propagation simulation programs,the latter of which we have made freely available. We also explore how self-focusing can minimize certain deleterious effects of turbulence for OAM light.The second part of this dissertation considers nonlinear effects of OAM light propagating in azimuthally symmetric waveguides. Such waveguides have so-called spin-orbit (SO) modes, which are quantized based on their total angular momentum (TAM). We develop a generalized theory of four wave mixing-based parametric amplification of SO modes and show that these processes conserve TAM, but under certain circumstances can be taken to conserve SAM andOAM independently. Our theory is validated against a nonlinear multimode beam propagation simulation program which we developed and, again, have made freely available.
■590 ▼aSchool code: 0117.
■650 4▼aPhysics
■650 4▼aOptics
■650 4▼aTheoretical physics
■650 4▼aElectrical engineering
■653 ▼aAngular momentum
■653 ▼aFour wave mixing
■653 ▼aKerr
■653 ▼aNonlinear optics
■653 ▼aOrbital angular momentum
■653 ▼aTurbulence
■690 ▼a0605
■690 ▼a0752
■690 ▼a0544
■690 ▼a0753
■71020▼aUniversity of Maryland, College Park▼bPhysics.
■7730 ▼tDissertations Abstracts International▼g85-12B.
■790 ▼a0117
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17160196▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
