Elimination of bandwidth effect in attenuation measurement with picosecond ultrasonics

スポンサーリンク

概要

• 論文の詳細を見る

• We study the broadening effect of probing pulse light on the apparent attenuation of the Brillouin oscillation measured with picosecond ultrasonics. We observe experimentally that the attenuation of the Brillouin oscillation is sensitive to the bandwidth, and the apparent attenuation coefficient increases as the bandwidth increases, being far from the intrinsic attenuation coefficient. Theoretical calculation is performed to reconstruct the observed oscillations, and it is confirmed that there are several factors affecting the apparent attenuation in addition to the bandwidth. We finally propose equations that deduce the contribution of the broadening to the apparent attenuation of the Brillouin oscillation.

• Institute of Physicsの論文
• 2014-07-28

著者

• Maehara Atsushi

  Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan.

関連論文

• Elimination of bandwidth effect in attenuation measurement with picosecond ultrasonics

スポンサーリンク