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Detection of nano-scale particles with a self-referenced and self-heterodyned raman micro-laser

a nano-scale particle and micro-laser technology, applied in the field of nano-scale particle detection, can solve the problems of vibration, temperature rise, non-instantaneous response, etc., and achieve the effects of improving sensitivity and detection limit, small polarizabilities, and small polarization

Inactive Publication Date: 2015-10-08
WASHINGTON UNIV IN SAINT LOUIS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The technology described in this patent provides a way to make a sensor that can detect particles in biological media without using plasmonics or laser stabilization techniques. This makes it easier to use and reduces the cost of the sensor. The technology also allows for faster detection and the ability to use the same sensor for different applications by simply changing the wavelength of the pump laser. Overall, this technology provides a more efficient and cost-effective way to detect particles in biological environments.

Problems solved by technology

In particular, a non-instantaneous response is caused by vibrations of the crystal (or glass) lattice.
In addition, lattice vibrations are excited, leading to a temperature rise.

Method used

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  • Detection of nano-scale particles with a self-referenced and self-heterodyned raman micro-laser
  • Detection of nano-scale particles with a self-referenced and self-heterodyned raman micro-laser
  • Detection of nano-scale particles with a self-referenced and self-heterodyned raman micro-laser

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Embodiment Construction

[0048]According to the embodiment(s) of the present invention, various views are illustrated in FIG. 1-8 and like reference numerals are being used consistently throughout to refer to like and corresponding parts of the invention for all of the various views and figures of the drawing. Also, please note that the first digit(s) of the reference number for a given item or part of the invention should correspond to the Fig. number in which the item or part is first identified.

[0049]One embodiment of the present technology comprising whispering gallery mode resonator based nano-particle detection teaches a system and method for effectively detecting nano-sized particles. The details of the technology as disclosed and various implementations can be better understood by referring to the figures of the drawing. Referring to FIG. 1A, a diagram of one implementation of the photo-detection system is provided with a photodiode (PD) array monitor and optical spectral analyzer (OSC) setup is sho...

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Abstract

A system and method for is a micro-laser based nano-scale object detection system and method using frequency shift and / or mode splitting techniques. The system and method can provide highly sensitive detection of nanoparticles with a self-referenced and self-heterodyned whispering-gallery Raman micro-laser. The system and method also provides for nano-particle size measurement.

Description

CROSS REFERENCE[0001]This Application Is A Continuation-In-Part Of And Claims The Benefit Of Application Ser. No. 13 / 460,170 Entitled SYSTEMS AND METHODS FOR PARTICLE DETECTION, Filed Apr. 30, 2012, Which Said Application Is Incorporated Herein By Reference In Its Entirety.U.S. GOVERNMENT RELATED CONTRACT(S) / GRANT(S)[0002]National Science Foundation under Grants 0954941 and 1264997;[0003]US Army Research Office under Grant W911NF-12-1-0026BACKGROUND[0004]1. Field[0005]This technology relates generally to nano-scale sized particle detection, and, more particularly, to detection of nano-scale sized particles using frequency shift and / or mode splitting techniques.[0006]2. Background Art[0007]With recent progress in nanotechnology, nanoparticles of different materials and sizes have been synthesized and engineered as key components in various applications ranging from solar cell technology to the detection of biomolecules. Meanwhile, nanoparticles generated by vehicles and industry have...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): G01N15/14G01N21/65
CPCG01N15/1434G01N2201/06113G01N21/65G01N21/7746Y10S977/88G01N2021/655
Inventor OZDEMIR, SAHIN KAYAYANG, LAN
Owner WASHINGTON UNIV IN SAINT LOUIS
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