WHISPERING GALLERY MODE ULTRASONICALLY COUPLED SCANNING PROBE MICROSCOPE
First Claim
Patent Images
1. A method, comprising:
- scanning an oscillating probe tip over a specimen surface;
coupling an acoustic vibration associated with oscillations of the probe tip to a resonant cavity so as to form a resonant acoustic wave; and
detecting probe tip-specimen separation based on the resonant acoustic wave.
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Abstract
Scanning probe microscopes include a probe tip coupled to a tuning fork or other acoustic resonator so as to apply a shear force when contacted to a specimen surface based on an applied acoustic signal. A secondary ultrasonic transducer is in acoustic communication with the specimen and a resonant structure. Probe tip-specimen displacement can be detected based on whispering gallery mode ultrasonic waves in the resonant structure using the secondary transducer, and such displacements maintained using feedback control based on whispering gallery mode acoustic wave magnitude.
16 Citations
19 Claims
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1. A method, comprising:
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scanning an oscillating probe tip over a specimen surface; coupling an acoustic vibration associated with oscillations of the probe tip to a resonant cavity so as to form a resonant acoustic wave; and detecting probe tip-specimen separation based on the resonant acoustic wave. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method, comprising:
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receiving a plurality of probe tip-specimen displacement adjustments and corresponding specimen locations based on resonant detection of a magnitude or phase of an acoustic wave produced by a probe tip; and displaying a specimen image based on the received probe tip-specimen displacement adjustments and specimen locations. - View Dependent Claims (18, 19)
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Specification