Laser ablation of solid ozone

Hidehiko Nonaka, Tetsuya Nishiguchi, Yoshiki Morikawa, Masaharu Miyamoto, Shingo Ichimura

Research output: Contribution to journalArticle

Abstract

Species ablated from solid ozone by a UV laser were investigated using a time-of-flight method through a quadrupole mass filter. The results show that UV-laser ablation of solid ozone can produce a pulsed ozone beam with a translational energy far above that of room temperature. High-concentration ozone from an ozone jet generator is solidified on a sapphire substrate attached to a copper block which is cooled to 30 to 60 K on a cryocooler head and the solid ozone is irradiated by pulsed laser light from a KrF laser (248 nm). The ablated species were a mixture of ozone and molecular oxygen as well as atomic oxygen due to photodissociation of ozone. At a substrate temperature of 30 K, the total amount of ablated ozone increases as the laser fluence increases to 13 mJcm-2. Beyond this fluence, enhanced decomposition of ozone occurs. Gaussian fitting of the time-of-flight signals of the ablated ozone reveals an average thermal energy exceeding 1,500 K. The velocity also increases when the laser fluence enters saturation at 2,300 K at 13 mJcm-2.

Original languageEnglish
Pages (from-to)J131-J136
JournalMaterials Research Society Symposium - Proceedings
Volume617
DOIs
Publication statusPublished - 2000 Jan 1
Externally publishedYes

Fingerprint

Ozone
Laser ablation
laser ablation
ozone
fluence
Lasers
ultraviolet lasers
fluid filters
Photodissociation
lasers
Molecular oxygen
Aluminum Oxide
oxygen
Substrates
Thermal energy
Pulsed lasers
thermal energy
Sapphire
photodissociation
Copper

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Laser ablation of solid ozone. / Nonaka, Hidehiko; Nishiguchi, Tetsuya; Morikawa, Yoshiki; Miyamoto, Masaharu; Ichimura, Shingo.

In: Materials Research Society Symposium - Proceedings, Vol. 617, 01.01.2000, p. J131-J136.

Research output: Contribution to journalArticle

Nonaka, H, Nishiguchi, T, Morikawa, Y, Miyamoto, M & Ichimura, S 2000, 'Laser ablation of solid ozone', Materials Research Society Symposium - Proceedings, vol. 617, pp. J131-J136. https://doi.org/10.1557/PROC-617-J1.3
Nonaka, Hidehiko ; Nishiguchi, Tetsuya ; Morikawa, Yoshiki ; Miyamoto, Masaharu ; Ichimura, Shingo. / Laser ablation of solid ozone. In: Materials Research Society Symposium - Proceedings. 2000 ; Vol. 617. pp. J131-J136.
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