On-chip whispering-gallery-mode microlasers and their applications for nanoparticle sensing

Sahin Ozdemir, L. He, J. Zhu, F. Monifi, W. Kim, O. Kenechukwu, H. Yilmaz, S. H. Huang, L. Yang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Whispering-Gallery-Mode (WGM) resonators are emerging as an excellent platform to study optical phenomena resulting from enhanced light-matter interactions due to their superior capability to confine photons for extended periods of time. The monolithic fabrication process to achieve ultra-high-Q WGM resonators without the need to align multiple optical components, as needed in traditional design of resonators based on precise arrangement of mirrors, is especially attractive. Here we explain how to process a layer of thin film doped with optical gain medium, which is prepared by wet chemical synthesis, into WGM structures on silicon wafer to achieve arrays of ultra-low threshold on-chip microlasers. We can adjust the dopant species and concentration easily by tailoring the chemical compositions in the precursor solution. Lasing in different spectral windows from visible to infrared was observed in the experiments. In particular, we investigated nanoparticle sensing applications of the on-chip WGM microlasers by taking advantages of the narrow linewidths and the splitting of lasing modes arising from their interactions with nano-scale structures. It has been found that a nanoparticle as small as ten nanometers in radius could split a lasing mode in a WGM resonator into two spectrally separated lasing lines. Subsequently, when these lasing lines are photo-mixed at a photodetector a heterodyne beat note is generated which can be processed to signal the detection of individual nanoparticles. We have demonstrated detection of virions, dielectric and metallic nanoparticles by monitoring the changes in this self-heterodyning beat note of the split lasing modes. The built-in self-heterodyne method achieved in this monolithic WGM microlaser provides an ultrasensitive scheme for detecting and measuring nanoparticles at single particle resolution, with a theoretical detection limit of one nanometer.

Original languageEnglish (US)
Title of host publicationIntegrated Optics
Subtitle of host publicationDevices, Materials, and Technologies XVII
Volume8627
DOIs
StatePublished - May 30 2013
EventIntegrated Optics: Devices, Materials, and Technologies XVII - San Francisco, CA, United States
Duration: Feb 5 2013Feb 7 2013

Other

OtherIntegrated Optics: Devices, Materials, and Technologies XVII
CountryUnited States
CitySan Francisco, CA
Period2/5/132/7/13

Fingerprint

Whispering Gallery Modes
Whispering gallery modes
whispering gallery modes
Nanoparticles
lasing
Chip
Sensing
chips
Resonator
nanoparticles
Resonators
resonators
Heterodyne
Beat
synchronism
Heterodyning
heterodyning
Chemical Synthesis
Optical gain
Detection Limit

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Ozdemir, S., He, L., Zhu, J., Monifi, F., Kim, W., Kenechukwu, O., ... Yang, L. (2013). On-chip whispering-gallery-mode microlasers and their applications for nanoparticle sensing. In Integrated Optics: Devices, Materials, and Technologies XVII (Vol. 8627). [86270N] https://doi.org/10.1117/12.2006311
Ozdemir, Sahin ; He, L. ; Zhu, J. ; Monifi, F. ; Kim, W. ; Kenechukwu, O. ; Yilmaz, H. ; Huang, S. H. ; Yang, L. / On-chip whispering-gallery-mode microlasers and their applications for nanoparticle sensing. Integrated Optics: Devices, Materials, and Technologies XVII. Vol. 8627 2013.
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Ozdemir, S, He, L, Zhu, J, Monifi, F, Kim, W, Kenechukwu, O, Yilmaz, H, Huang, SH & Yang, L 2013, On-chip whispering-gallery-mode microlasers and their applications for nanoparticle sensing. in Integrated Optics: Devices, Materials, and Technologies XVII. vol. 8627, 86270N, Integrated Optics: Devices, Materials, and Technologies XVII, San Francisco, CA, United States, 2/5/13. https://doi.org/10.1117/12.2006311

On-chip whispering-gallery-mode microlasers and their applications for nanoparticle sensing. / Ozdemir, Sahin; He, L.; Zhu, J.; Monifi, F.; Kim, W.; Kenechukwu, O.; Yilmaz, H.; Huang, S. H.; Yang, L.

Integrated Optics: Devices, Materials, and Technologies XVII. Vol. 8627 2013. 86270N.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Ozdemir S, He L, Zhu J, Monifi F, Kim W, Kenechukwu O et al. On-chip whispering-gallery-mode microlasers and their applications for nanoparticle sensing. In Integrated Optics: Devices, Materials, and Technologies XVII. Vol. 8627. 2013. 86270N https://doi.org/10.1117/12.2006311