Toshiki Sugimoto

collaborators

2 papers

astro-ph.GA2026

H $_{2}$ Ortho-Para Spin Conversion on Inhomogeneous Grain Surfaces. II. impact of the rotational energy difference between adsorbed ortho-H $_{2}$ and para-H $_{2}$ and implication to deuterium fractionation chemistry

Kenji Furuya, Toshiki Sugimoto, Kazunari Iwasaki +2

We investigate how the H $_{2}$ ortho-to-para ratio (OPR) and dueterium fractionation in star-forming regions are affected by nuclear spin conversion (NSC) on dust grains. Particular…

physics.optics2025

Picocavity-Enhanced Raman Spectroscopy of Physisorbed H $_{2}$ and D $_{2}$ Molecules

Akitoshi Shiotari, Shuyi Liu, George Trenins +4

We report on tip-enhanced Raman spectroscopy of H2 and D2 molecules physisorbed within a plasmonic picocavity at 10 K. The intense Raman peaks resulting from the rotational and vib…

H2​ Ortho-Para Spin Conversion on Inhomogeneous Grain Surfaces. II. impact of the rotational energy difference between adsorbed ortho-H2​ and para-H2​ and implication to deuterium fractionation chemistry

Picocavity-Enhanced Raman Spectroscopy of Physisorbed H2​ and D2​ Molecules

H $_{2}$ Ortho-Para Spin Conversion on Inhomogeneous Grain Surfaces. II. impact of the rotational energy difference between adsorbed ortho-H $_{2}$ and para-H $_{2}$ and implication to deuterium fractionation chemistry

Picocavity-Enhanced Raman Spectroscopy of Physisorbed H $_{2}$ and D $_{2}$ Molecules