Study of vibrational modes of gold nanostructures by picosecond ultrasonics

Journal Article · Fri Jan 01 00:00:00 EST 1993 · Journal of Applied Physics; (United States)

DOI:https://doi.org/10.1063/1.353859· OSTI ID:6774511

Lin, H; Maris, H J; Freund, L B ^[1]; Lee, K Y; Luhn, H; Kern, D P ^[2]

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1. Department of Physics and Division of Engineering, Brown University, Providence, Rhode Island 02912 (United States)
2. IBM Thomas J. Watson Research Center, Yorktown Heights, New York 10598 (United States)

We have used picosecond ultrasonics techniques to study the vibrations of several nanostructures composed of laterally patterned gold films on fused quartz substrates. The structures include arrays of stripes and dots with lateral repeat distance as small as 2000 A. The frequencies and attenuation rates of the low-lying normal modes of these structures are measured. We compare these results with those obtained theoretically from a finite element analysis of the dynamics of the structures, and discuss the physical nature of the principal vibrational modes.

• DOE Contract Number: FG02-86ER45267
• OSTI ID: 6774511
• Journal Information: Journal of Applied Physics; (United States), Vol. 73:1; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
GOLD
VIBRATIONAL STATES
ATTENUATION
OPTICAL REFLECTION
STRESS RELAXATION
THIN FILMS
ULTRASONIC TESTING
ACOUSTIC TESTING
ELEMENTS
ENERGY LEVELS
EXCITED STATES
FILMS
MATERIALS TESTING
METALS
NONDESTRUCTIVE TESTING
REFLECTION
RELAXATION
TESTING
TRANSITION ELEMENTS
360104* - Metals & Alloys- Physical Properties