Title :
Femtosecond excitation of confined acoustic modes in 2-D arrayed GaN nanorods
Author :
Chen, Hung-Pin ; Wu, Yueh-Chun ; Sheu, Jinn-Kong ; Sun, Chi-Kuang
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
We successfully excited confined acoustic oscillations, which reflect the mechanical properties, in 2-D arrayed GaN nanorods with different diameters, by using femtosecond lasers. A nano-softening effect was observed when rod diameter was less than 150nm.
Keywords :
III-V semiconductors; gallium compounds; high-speed optical techniques; nanorods; 2D arrayed nanorod; GaN; confined acoustic oscillation; femtosecond excitation; nanosoftening effect; Acoustics; Gallium nitride; Nanowires; Ultrafast optics; Vibrations; Young´s modulus;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2011 Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-4577-1223-4
