Abstract

Whispering gallery mode (WGM) optical microresonators with high quality (Q) factors have been widely used to sense biomolecules due to their small mode volume and narrow linewidth resonance. Previously, we reported a frequency locked optical whispering evanescent resonator (FLOWER) system for real time single macromolecule detection. Here, we explore the detection limit of FLOWER via numerical simulation based on coupled mode theory. These results predict that frequency locked microcavities with ultra-high-Q can detect resonance shifts as small as 0.05 attometers at 1 millisecond time interval and are limited by shot noise and laser intensity noise.

Full Text
Paper version not known

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.