Method for detecting surface plasmon resonance
AssigneeAgency for Science, Technology and Research
InventorsYun Zong, Wolfgang Knoll, Xiaodi Su
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Abstract
There is disclosed a method and system for detecting a surface plasmon resonance associated with a fluid sample. The method includes the step of providing a piezoelectric substrate having at least two electrodes thereon, wherein at least one of said electrodes is coupled to a fluid sample. A light beam is transmitted toward the fluid sample to induce a oscillation frequency in the piezoelectric substrate. The oscillation frequency from said electrodes is then measured during transmittance of the light to detect the surface plasmon resonance associated with the fluid sample.
Claims20
A method for detecting surface plasmon resonance associated with a fluid sample, the method comprising the steps of:
- providing a piezoelectric substrate having at least two electrodes thereon, wherein at least one of said electrodes is coupled to a fluid sample;
- transmitting a light beam at a plurality of incident angles towards the piezoelectric substrate to induce an oscillation frequency detune in the piezoelectric substrate;
- and
- measuring the oscillation frequency detune from said electrodes at each of said incident angles during transmittance of said light to detect surface plasmon resonance associated with the fluid sample.
A system for detecting surface plasmon resonance associated with a fluid sample, the system comprising:
- a piezoelectric substrate having at least two electrodes disposed thereon;
- an enclosed chamber for retaining a fluid sample therein, wherein said enclosed chamber is arranged such that at least one of the electrodes is coupled to said fluid sample in use;
- a light beam source that transmit a light beam at a plurality of incident angles towards said piezoelectric substrate to induce an oscillation frequency detune on said piezoelectric substrate;
- and
- a means for measuring the oscillation frequency detune from said electrodes at each of said incident angles during transmittance of said light to detect surface plasmon resonance associated with said fluid sample.
Use of a system comprising:
- a piezoelectric substrate having at least two electrodes disposed thereon;
- an enclosed chamber for retaining a fluid sample therein, wherein said enclosed chamber is arranged such that at least one of the electrodes is coupled to said fluid sample in use;
- a light beam source that transmit a light beam at a plurality of incident angles towards said piezoelectric substrate to induce an oscillation frequency detune on said piezoelectric substrate;
- and means for measuring the oscillation frequency detune from said electrodes at each of said incident angles during transmittance of said light;
- wherein said system is used to detect surface plasmon resonance associated with said fluid sample based on said measured oscillation frequency detune.
Dependencies are inferred from the claim text.