Abstract
We observed two-photon emission (TPE) signal from the first vibrationally excited state of parahydrogen gas coherently excited by counter-propagating laser pulses. A single narrow-linewidth laser source has roles in the excitation of the parahydrogen molecules and the induction of the TPE process. We measured dependences of the signal energy on the detuning, target gas pressure, and input pulse energies. These results are qualitatively consistent with those obtained by numerical simulations based on Maxwell-Bloch equations with one spatial dimension and one temporal dimension. This study of the TPE process in the counter-propagating injection scheme is an important step toward neutrino mass spectroscopy.
| Original language | English |
|---|---|
| Article number | 045401 |
| Journal | Journal of Physics B: Atomic, Molecular and Optical Physics |
| Volume | 52 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - Jan 30 2019 |
Fingerprint
Keywords
- Coherence
- Counter-propagating laser injection
- Maxwell-Bolch equations
- Parahydrogen
- Two-photon emission
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
Cite this
Coherent two-photon emission from hydrogen molecules excited by counter-propagating laser pulses. / Hiraki, Takahiro; Hara, Hideaki; Miyamoto, Yuki; Imamura, Kei; Masuda, Takahiko; Sasao, Noboru; Uetake, Satoshi; Yoshimi, Akihiro; Yoshimura, Koji; Yoshimura, Motohiko.
In: Journal of Physics B: Atomic, Molecular and Optical Physics, Vol. 52, No. 4, 045401, 30.01.2019.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Coherent two-photon emission from hydrogen molecules excited by counter-propagating laser pulses
AU - Hiraki, Takahiro
AU - Hara, Hideaki
AU - Miyamoto, Yuki
AU - Imamura, Kei
AU - Masuda, Takahiko
AU - Sasao, Noboru
AU - Uetake, Satoshi
AU - Yoshimi, Akihiro
AU - Yoshimura, Koji
AU - Yoshimura, Motohiko
PY - 2019/1/30
Y1 - 2019/1/30
N2 - We observed two-photon emission (TPE) signal from the first vibrationally excited state of parahydrogen gas coherently excited by counter-propagating laser pulses. A single narrow-linewidth laser source has roles in the excitation of the parahydrogen molecules and the induction of the TPE process. We measured dependences of the signal energy on the detuning, target gas pressure, and input pulse energies. These results are qualitatively consistent with those obtained by numerical simulations based on Maxwell-Bloch equations with one spatial dimension and one temporal dimension. This study of the TPE process in the counter-propagating injection scheme is an important step toward neutrino mass spectroscopy.
AB - We observed two-photon emission (TPE) signal from the first vibrationally excited state of parahydrogen gas coherently excited by counter-propagating laser pulses. A single narrow-linewidth laser source has roles in the excitation of the parahydrogen molecules and the induction of the TPE process. We measured dependences of the signal energy on the detuning, target gas pressure, and input pulse energies. These results are qualitatively consistent with those obtained by numerical simulations based on Maxwell-Bloch equations with one spatial dimension and one temporal dimension. This study of the TPE process in the counter-propagating injection scheme is an important step toward neutrino mass spectroscopy.
KW - Coherence
KW - Counter-propagating laser injection
KW - Maxwell-Bolch equations
KW - Parahydrogen
KW - Two-photon emission
UR - http://www.scopus.com/inward/record.url?scp=85062467693&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85062467693&partnerID=8YFLogxK
U2 - 10.1088/1361-6455/aafbd0
DO - 10.1088/1361-6455/aafbd0
M3 - Article
AN - SCOPUS:85062467693
VL - 52
JO - Journal of Physics B: Atomic, Molecular and Optical Physics
JF - Journal of Physics B: Atomic, Molecular and Optical Physics
SN - 0953-4075
IS - 4
M1 - 045401
ER -