Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
}
TY - GEN
T1 - Ultrasonic force microscopy in waveguide mode up to 100 MHz
AU - Inagaki, K.
AU - Kolosov, Oleg
AU - Briggs, G. Andrew D.
AU - Muto, S.
AU - Horisaki, Y.
AU - Wright, O. B.
PY - 1998
Y1 - 1998
N2 - We present experimental results that extend the frequency range of ultrasonic force microscopy (UFM) to 100 MHz, operating in a mode in which the cantilever base is vibrated. In this "waveguide-UFM" mode flexural ultrasonic vibrations are launched down the cantilever as in a waveguide, without exciting any particular cantilever resonance. The nonlinearity of the tip-sample force-distance curve allows the conversion of a modulated ultrasonic frequency into a low frequency vibration of the cantilever, detected using an optical lever at the modulation frequency in an conventional atomic force microscope. Experiments were performed on a sample of InAs self-assembled quantum dots on a GaAs substrate. The dots, of order 10-100 nm in diameter, were clearly resolved up to operating frequencies similar to 100 MHZ, demonstrating the difference in elastic properties. Images were also obtained for a polycrystalline chromium film structure deposited on a silicon substrate.
AB - We present experimental results that extend the frequency range of ultrasonic force microscopy (UFM) to 100 MHz, operating in a mode in which the cantilever base is vibrated. In this "waveguide-UFM" mode flexural ultrasonic vibrations are launched down the cantilever as in a waveguide, without exciting any particular cantilever resonance. The nonlinearity of the tip-sample force-distance curve allows the conversion of a modulated ultrasonic frequency into a low frequency vibration of the cantilever, detected using an optical lever at the modulation frequency in an conventional atomic force microscope. Experiments were performed on a sample of InAs self-assembled quantum dots on a GaAs substrate. The dots, of order 10-100 nm in diameter, were clearly resolved up to operating frequencies similar to 100 MHZ, demonstrating the difference in elastic properties. Images were also obtained for a polycrystalline chromium film structure deposited on a silicon substrate.
U2 - 10.1109/ULTSYM.1998.765067
DO - 10.1109/ULTSYM.1998.765067
M3 - Conference contribution/Paper
SN - 0-7803-4096-5
VL - 2
SP - 1255
EP - 1259
BT - Ultrasonics Symposium, 1998. Proceedings., 1998 IEEE
A2 - Schneider, S. C.
A2 - Levy, M.
A2 - McAvoy, B. R.
PB - IEEE
CY - New York
T2 - 1998 IEEE Ultrasonics Symposium
Y2 - 5 October 1998 through 8 October 1998
ER -