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Nanoscale thermoelastic probing of megahertz thermal diffusion
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10.1063/1.2770769
/content/aip/journal/apl/91/7/10.1063/1.2770769
http://aip.metastore.ingenta.com/content/aip/journal/apl/91/7/10.1063/1.2770769
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(Color online) Schematic diagram of the modified optical heterodyne force microscope setup. AOM: acousto-optic modulator. The cantilever is slanted at an angle of 15° to the sample surface.

Image of FIG. 2.
FIG. 2.

(Color online) Measured amplitude and phase lag of the photothermally induced tip vibrations at , corresponding to a line scan (dots) across the spot center at [(a) and (b)] chopping frequency with and [(c) and (d)] with . Also shown are the calculated amplitudes and phase lag of the surface displacement (solid lines) and the surface temperature (dashed lines) at , and the optical intensity profile (dotted-dashed lines).

Image of FIG. 3.
FIG. 3.

(Color online) (a) Tip vibrational amplitude at plotted (solid symbols) together with the FWHM of the amplitude-position curves (circles) vs incident optical power for . [(b) and (c)] Measured tip amplitude and phase lag profiles at (dots) at and , and calculated amplitude and phase lag of the surface displacement (solid lines) at and spot profile (dotted-dashed lines).

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/content/aip/journal/apl/91/7/10.1063/1.2770769
2007-08-14
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Nanoscale thermoelastic probing of megahertz thermal diffusion
http://aip.metastore.ingenta.com/content/aip/journal/apl/91/7/10.1063/1.2770769
10.1063/1.2770769
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