Ablation of organic crystals using picosecond THz free electron laser pulses

Author

Nagai, Masaharu ; Matsubara, Eiichi ; Ashida, M. ; Kawase, Kanta ; Irizawa, Akinori ; Kato, Ryota ; Isoyama, Goro

Author_Institution

Grad. Sch. of Eng. Sci., Osaka Univ., Toyonaka, Japan

fYear

2014

fDate

14-19 Sept. 2014

Firstpage

1

Lastpage

2

Abstract

We report the ablation of an organic crystal using THz free electron laser (FEL) at the Institute of Scientific and Industrial Research (ISIR), Osaka university. Under the irradiation of FEL resonant for the intermolecular vibrational mode, aerosol is created from the surface of the sucrose crystal. The ablation occurs at the adequate power density without the green luminescence which indicates chemical dissociation. Our results open a new venue for the nonthermal control of materials with intense picosecond pulses.

Keywords

aerosols; dissociation; free electron lasers; high-speed optical techniques; laser ablation; vibrational modes; FEL resonant; ISIR; Institute of Scientific and Industrial Research; Osaka university; aerosol; chemical dissociation; intense picosecond pulses; intermolecular vibrational mode; nonthermal control; organic crystal ablation; picosecond THz free electron laser pulses; power density; sucrose crystal; Crystals; Educational institutions; Free electron lasers; Green products; Radiation effects; Sugar; Vibrations;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2014 39th International Conference on

Conference_Location

Tucson, AZ

Type

conf

DOI

10.1109/IRMMW-THz.2014.6956352

Filename

6956352