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 language | English |
|---|---|
| Pages (from-to) | J131-J136 |
| Journal | Materials Research Society Symposium - Proceedings |
| Volume | 617 |
| DOIs | |
| Publication status | Published - 2000 Jan 1 |
| Externally published | Yes |
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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 journal › Article
}
TY - JOUR
T1 - Laser ablation of solid ozone
AU - Nonaka, Hidehiko
AU - Nishiguchi, Tetsuya
AU - Morikawa, Yoshiki
AU - Miyamoto, Masaharu
AU - Ichimura, Shingo
PY - 2000/1/1
Y1 - 2000/1/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=0034438396&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0034438396&partnerID=8YFLogxK
U2 - 10.1557/PROC-617-J1.3
DO - 10.1557/PROC-617-J1.3
M3 - Article
AN - SCOPUS:0034438396
VL - 617
SP - J131-J136
JO - Materials Research Society Symposium - Proceedings
JF - Materials Research Society Symposium - Proceedings
SN - 0272-9172
ER -