Videos

 

 

WGM microresonator coupling and Erbium Laser

This video shows whispering-gallery-mode (WGM) microtoroids under a microscope. The resonator is Erbium doped for lasing operation. Pump laser wavelength band is in 1450nm. Laser is generated in 1550nm band. The green light is due to three-photon upconversion of Er ions.

 

 

Detecting R=100nm Single Gold Nanoparticles with WGM microresonator- mode splitting

Each particle binding causes a change in the mode splitting spectrum of the whispering-gallery-mode microtoroid-fiber taper system, enabling the detection and sizing of single nanoparticles.

 

 

4th flapping mode in a opto-mechanical resonator

4th flapping mode in a opto-mechanical resonator. The simulation is done by Comsol Multiphysics.

 

 

 

 

Images