Vibrational excitation of CO molecules by infrared free electron laser

Y. Ogi; T. Endo; K. Tsukiyama; H. Kondoh; K. Tono; Y. Ogawa; Y. Hamada; T. Ohta; H. Kuroda

doi:10.1016/S0368-2048(02)00211-6

Vibrational excitation of CO molecules by infrared free electron laser

Y. Ogi
, T. Endo
, K. Tsukiyama
, H. Kondoh
, K. Tono
, Y. Ogawa
, Y. Hamada
, T. Ohta
, H. Kuroda

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

This paper describes the vibrational excitation of CO molecules by FEL-SUT (Free Electron Laser at Tokyo University of Science). FEL is tuned to 4.67 μm, corresponding to the X¹Σ⁺(v″ = 1)←(v″ = 0) transition of CO. The population of the vibrationally excited states is probed by the (2 + 1) resonance enhanced multiphoton ionization technique via the B¹Σ⁺ Rydberg state. We find that ∼10% of the population in v″ = 0 is excited to v″ = 1. In spite of the existence of the resonant vibrational ladder climbing channels via specific rotational levels, no signal originating from v″ = 2 is detectable. The predissociation in the B¹Σ⁺(v′ = 2) state is believed to be responsible for the absence of CO⁺ signals.

Original language	English
Pages (from-to)	67-73
Number of pages	7
Journal	Journal of Electron Spectroscopy and Related Phenomena
Volume	128
Issue number	1
DOIs	https://doi.org/10.1016/S0368-2048(02)00211-6
Publication status	Published - 2003 Jan
Externally published	Yes

Keywords

CO
Free electron laser
REMPI
Vibrational excitation

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Radiation
Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Spectroscopy
Physical and Theoretical Chemistry

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10.1016/S0368-2048(02)00211-6

Cite this

@article{0f4891b9f3514e33956811ac2a1f1723,

title = "Vibrational excitation of CO molecules by infrared free electron laser",

abstract = "This paper describes the vibrational excitation of CO molecules by FEL-SUT (Free Electron Laser at Tokyo University of Science). FEL is tuned to 4.67 μm, corresponding to the X1Σ+(v″ = 1)←(v″ = 0) transition of CO. The population of the vibrationally excited states is probed by the (2 + 1) resonance enhanced multiphoton ionization technique via the B1Σ+ Rydberg state. We find that ∼10\% of the population in v″ = 0 is excited to v″ = 1. In spite of the existence of the resonant vibrational ladder climbing channels via specific rotational levels, no signal originating from v″ = 2 is detectable. The predissociation in the B1Σ+(v′ = 2) state is believed to be responsible for the absence of CO+ signals.",

keywords = "CO, Free electron laser, REMPI, Vibrational excitation",

author = "Y. Ogi and T. Endo and K. Tsukiyama and H. Kondoh and K. Tono and Y. Ogawa and Y. Hamada and T. Ohta and H. Kuroda",

note = "Funding Information: We gratefully acknowledge the skillful assistance by the FEL-SUT staffs. This work is partly supported by Grant-in-Aid for Creative Scientific Research, JSPS (No. 11NP0101) and a special grant from Tokyo University of Science.",

year = "2003",

month = jan,

doi = "10.1016/S0368-2048(02)00211-6",

language = "English",

volume = "128",

pages = "67--73",

journal = "Journal of Electron Spectroscopy and Related Phenomena",

issn = "0368-2048",

publisher = "Elsevier B.V.",

number = "1",

}

TY - JOUR

T1 - Vibrational excitation of CO molecules by infrared free electron laser

AU - Ogi, Y.

AU - Endo, T.

AU - Tsukiyama, K.

AU - Kondoh, H.

AU - Tono, K.

AU - Ogawa, Y.

AU - Hamada, Y.

AU - Ohta, T.

AU - Kuroda, H.

N1 - Funding Information: We gratefully acknowledge the skillful assistance by the FEL-SUT staffs. This work is partly supported by Grant-in-Aid for Creative Scientific Research, JSPS (No. 11NP0101) and a special grant from Tokyo University of Science.

PY - 2003/1

Y1 - 2003/1

N2 - This paper describes the vibrational excitation of CO molecules by FEL-SUT (Free Electron Laser at Tokyo University of Science). FEL is tuned to 4.67 μm, corresponding to the X1Σ+(v″ = 1)←(v″ = 0) transition of CO. The population of the vibrationally excited states is probed by the (2 + 1) resonance enhanced multiphoton ionization technique via the B1Σ+ Rydberg state. We find that ∼10% of the population in v″ = 0 is excited to v″ = 1. In spite of the existence of the resonant vibrational ladder climbing channels via specific rotational levels, no signal originating from v″ = 2 is detectable. The predissociation in the B1Σ+(v′ = 2) state is believed to be responsible for the absence of CO+ signals.

AB - This paper describes the vibrational excitation of CO molecules by FEL-SUT (Free Electron Laser at Tokyo University of Science). FEL is tuned to 4.67 μm, corresponding to the X1Σ+(v″ = 1)←(v″ = 0) transition of CO. The population of the vibrationally excited states is probed by the (2 + 1) resonance enhanced multiphoton ionization technique via the B1Σ+ Rydberg state. We find that ∼10% of the population in v″ = 0 is excited to v″ = 1. In spite of the existence of the resonant vibrational ladder climbing channels via specific rotational levels, no signal originating from v″ = 2 is detectable. The predissociation in the B1Σ+(v′ = 2) state is believed to be responsible for the absence of CO+ signals.

KW - CO

KW - Free electron laser

KW - REMPI

KW - Vibrational excitation

UR - https://www.scopus.com/pages/publications/0037285445

UR - https://www.scopus.com/pages/publications/0037285445#tab=citedBy

U2 - 10.1016/S0368-2048(02)00211-6

DO - 10.1016/S0368-2048(02)00211-6

M3 - Article

AN - SCOPUS:0037285445

SN - 0368-2048

VL - 128

SP - 67

EP - 73

JO - Journal of Electron Spectroscopy and Related Phenomena

JF - Journal of Electron Spectroscopy and Related Phenomena

IS - 1

ER -

Vibrational excitation of CO molecules by infrared free electron laser

Abstract

Keywords

ASJC Scopus subject areas

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