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Direct Sensing in Liquids Using Whispering-Gallery-Mode Droplet Resonators
(2016-03-03)
Liquid droplets suspended by the tip of a thin wire, a glass capillary, or a needle form high-Q optical resonators, thanks to surface tension. Under gravity equilibrium conditions, the maximum drop diameter is approximately ...
Time-Resolved Photoacoustic Spectroscopy Using Fiber Bragg Grating Acoustic Transducers
(2016-03-22)
An acoustic transducer based on a fiber Bragg grating (FBG) is presented and characterized for use in time-resolved laser-induced photoacoustic spectroscopy (PAS) on solid samples. The photoacoustic wave was generated by ...