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US 12,674,746 B2Granted
Tip-enhanced spectroscopy
AssigneePostech Research and Business Development Foundation
InventorsKyoung-Duck Park, Yeonjeong Koo
Life of this patent
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Abstract
A tip-enhanced spectroscopy may include a substrate on which liquid containing an analyte is to be positioned, a tip extending from a fixed end to a free end adjacent to a location for the analyte, and a vibration source configured to harmonically vibrate the tip based on a preset natural frequency. The preset natural frequency may be a natural frequency of a tuning fork.
Claims4
A tip-enhanced spectroscopy device comprising:
- a substrate on which liquid containing an analyte is to be positioned;
- a tip extending from a fixed end to a free end adjacent to a location for the analyte;
- and
- a vibration source configured to harmonically vibrate the tip based on a preset natural frequency such that the free end has an oscillation amplitude oriented perpendicular to a longitudinal direction of the tip;
- wherein the vibration source is configured to harmonically vibrate the tip in a vibration mode having at least two nodes;
- and
- wherein the free end has an oscillation amplitude smaller than an oscillation amplitude of the free end when the tip vibrates in a first harmonic vibration.
4 more elements
Dependencies are inferred from the claim text.