Laser induced amplified spontaneous emission between the ion-pair states of Cl2

Shoma Hoshino; Oji Yamamoto; Koichi Tsukiyama

doi:10.1016/j.jms.2021.111513

Laser induced amplified spontaneous emission between the ion-pair states of Cl₂

Shoma Hoshino, Oji Yamamoto, Koichi Tsukiyama

Department of Chemistry

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

1 Citation (Scopus)

Abstract

We report the first detection of laser-induced amplified spontaneous emission (LIASE) between the F0_u⁺(P03) and E0_g⁺(P23) ion-pair states of Cl₂. Strong UV emission belonging to the E0_g⁺(P23) – B³Π(0_u⁺) transition was observed upon excitation to single vibronic levels of the F0_u⁺(P03) state. Only the vibrational levels of the E0_g⁺(P23) state with a relatively large Franck-Condon overlap between the laser-prepared vibrational levels of the F0_u⁺(P03) state were found to be generated. The intensity distribution in the corresponding F0_u⁺(P03) – E0_g⁺(P23) LIASE spectrum at approximately 5 μm is consistent with the vibrational populations in the E0_g⁺(P23) state determined by the analysis of the UV fluorescence.

Original language	English
Article number	111513
Journal	Journal of Molecular Spectroscopy
Volume	380
DOIs	https://doi.org/10.1016/j.jms.2021.111513
Publication status	Published - 1 Jul 2021

Keywords

Amplified spontaneous emission
Ion-pair state
Molecular chlorine

Access to Document

10.1016/j.jms.2021.111513

Cite this

@article{0ae9cf04044d49b1906fcec6b322366c,

title = "Laser induced amplified spontaneous emission between the ion-pair states of Cl2",

abstract = "We report the first detection of laser-induced amplified spontaneous emission (LIASE) between the F0u+(P03) and E0g+(P23) ion-pair states of Cl2. Strong UV emission belonging to the E0g+(P23) – B3Π(0u+) transition was observed upon excitation to single vibronic levels of the F0u+(P03) state. Only the vibrational levels of the E0g+(P23) state with a relatively large Franck-Condon overlap between the laser-prepared vibrational levels of the F0u+(P03) state were found to be generated. The intensity distribution in the corresponding F0u+(P03) – E0g+(P23) LIASE spectrum at approximately 5 μm is consistent with the vibrational populations in the E0g+(P23) state determined by the analysis of the UV fluorescence.",

keywords = "Amplified spontaneous emission, Ion-pair state, Molecular chlorine",

author = "Shoma Hoshino and Oji Yamamoto and Koichi Tsukiyama",

note = "Funding Information: This research was partly supported by JSPS KAKENHI (Grant Number JP20K15235). Publisher Copyright: {\textcopyright} 2021",

year = "2021",

month = jul,

day = "1",

doi = "10.1016/j.jms.2021.111513",

language = "English",

volume = "380",

journal = "Journal of Molecular Spectroscopy",

issn = "0022-2852",

publisher = "Academic Press Inc.",

}

TY - JOUR

T1 - Laser induced amplified spontaneous emission between the ion-pair states of Cl2

AU - Hoshino, Shoma

AU - Yamamoto, Oji

AU - Tsukiyama, Koichi

PY - 2021/7/1

Y1 - 2021/7/1

N2 - We report the first detection of laser-induced amplified spontaneous emission (LIASE) between the F0u+(P03) and E0g+(P23) ion-pair states of Cl2. Strong UV emission belonging to the E0g+(P23) – B3Π(0u+) transition was observed upon excitation to single vibronic levels of the F0u+(P03) state. Only the vibrational levels of the E0g+(P23) state with a relatively large Franck-Condon overlap between the laser-prepared vibrational levels of the F0u+(P03) state were found to be generated. The intensity distribution in the corresponding F0u+(P03) – E0g+(P23) LIASE spectrum at approximately 5 μm is consistent with the vibrational populations in the E0g+(P23) state determined by the analysis of the UV fluorescence.

AB - We report the first detection of laser-induced amplified spontaneous emission (LIASE) between the F0u+(P03) and E0g+(P23) ion-pair states of Cl2. Strong UV emission belonging to the E0g+(P23) – B3Π(0u+) transition was observed upon excitation to single vibronic levels of the F0u+(P03) state. Only the vibrational levels of the E0g+(P23) state with a relatively large Franck-Condon overlap between the laser-prepared vibrational levels of the F0u+(P03) state were found to be generated. The intensity distribution in the corresponding F0u+(P03) – E0g+(P23) LIASE spectrum at approximately 5 μm is consistent with the vibrational populations in the E0g+(P23) state determined by the analysis of the UV fluorescence.

KW - Amplified spontaneous emission

KW - Ion-pair state

KW - Molecular chlorine

UR - http://www.scopus.com/inward/record.url?scp=85112433625&partnerID=8YFLogxK

U2 - 10.1016/j.jms.2021.111513

DO - 10.1016/j.jms.2021.111513

M3 - Article

AN - SCOPUS:85112433625

VL - 380

JO - Journal of Molecular Spectroscopy

JF - Journal of Molecular Spectroscopy

SN - 0022-2852

M1 - 111513

ER -

Laser induced amplified spontaneous emission between the ion-pair states of Cl₂

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this