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Accessing High Order Modes From Populated Vibrational States of a Model System
Accessing High Order Modes From Populated Vibrational States of a Model System
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202105118
- ISBN
- 9798291505021
- DDC
- 541
- 서명/저자
- Accessing High Order Modes From Populated Vibrational States of a Model System
- 발행사항
- [Sl] : The University of Wisconsin - Madison, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 144 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-02, Section: B.
- 주기사항
- Advisor: Wright, John C.
- 학위논문주기
- Thesis (Ph.D.)--The University of Wisconsin - Madison, 2025.
- 초록/해제
- 요약Multiresonant coherent multidimensional spectroscopy (MR-CMDS) can combine vibrational and electronic resonances at ultrafast time scales to probe the fundamental interactions and dynamics of molecular systems. The nonlinear methods may be used to interrogate the potential energy surface of a system, which is of broad interest. In this dissertation, the high order vibrational modes of a rhodium dicarbonyl compound are accessed by vibrational ladder climbing. Successive populations are achieved by excitation from a single intense IR laser pulse which interacts with the sample multiple times. From the populated vibrational states, a coherent probe measures high order overtone and combination band coherences of the asymmetric and symmetric carbonyl stretches. The high order vibrational states are directly related to the potential energy surface. The proposed vibrational ladder climbing pathway is explored by varying the frequencies and time delays of the excitation pulses. An estimate of the nonlinear susceptibility constant χ(3) is determined and used to compare the relative intensities of spectral features linked to vibrational populations. This work was done with a newly developed mixed-domain multidimensional spectrometer. The new instrument has three independently tunable optical parametric amplifiers which can probe resonances from the mid-infrared to the ultraviolet. The multidimensional spectrometer can perform a variety of MR-CMDS experiments. This work demonstrates the capabilities of MR-CMDS experiments and applies them to a model compound.
- 일반주제명
- Physical chemistry
- 일반주제명
- Chemistry
- 일반주제명
- Analytical chemistry
- 키워드
- Anharmonicities
- 기타저자
- The University of Wisconsin - Madison Chemistry
- 기본자료저록
- Dissertations Abstracts International. 87-02B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■020 ▼a9798291505021
■035 ▼a(MiAaPQ)AAI32237886
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a541
■1001 ▼aOram, Kelson J. H.
■24510▼aAccessing High Order Modes From Populated Vibrational States of a Model System
■260 ▼a[Sl]▼bThe University of Wisconsin - Madison▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a144 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-02, Section: B.
■500 ▼aAdvisor: Wright, John C.
■5021 ▼aThesis (Ph.D.)--The University of Wisconsin - Madison, 2025.
■520 ▼aMultiresonant coherent multidimensional spectroscopy (MR-CMDS) can combine vibrational and electronic resonances at ultrafast time scales to probe the fundamental interactions and dynamics of molecular systems. The nonlinear methods may be used to interrogate the potential energy surface of a system, which is of broad interest. In this dissertation, the high order vibrational modes of a rhodium dicarbonyl compound are accessed by vibrational ladder climbing. Successive populations are achieved by excitation from a single intense IR laser pulse which interacts with the sample multiple times. From the populated vibrational states, a coherent probe measures high order overtone and combination band coherences of the asymmetric and symmetric carbonyl stretches. The high order vibrational states are directly related to the potential energy surface. The proposed vibrational ladder climbing pathway is explored by varying the frequencies and time delays of the excitation pulses. An estimate of the nonlinear susceptibility constant χ(3) is determined and used to compare the relative intensities of spectral features linked to vibrational populations. This work was done with a newly developed mixed-domain multidimensional spectrometer. The new instrument has three independently tunable optical parametric amplifiers which can probe resonances from the mid-infrared to the ultraviolet. The multidimensional spectrometer can perform a variety of MR-CMDS experiments. This work demonstrates the capabilities of MR-CMDS experiments and applies them to a model compound.
■590 ▼aSchool code: 0262.
■650 4▼aPhysical chemistry
■650 4▼aChemistry
■650 4▼aAnalytical chemistry
■653 ▼aAnharmonicities
■653 ▼aMultiresonant Coherent multidimensional spectroscopy
■653 ▼aUltrafast spectroscopy
■653 ▼aVibrational ladder climbing
■690 ▼a0494
■690 ▼a0485
■690 ▼a0486
■71020▼aThe University of Wisconsin - Madison▼bChemistry.
■7730 ▼tDissertations Abstracts International▼g87-02B.
■790 ▼a0262
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17359429▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
