Biological cells inside an optofluidic cavity modify the optical cavity modes, providing a probe for optical properties of the cells that can be used to detect and differentiate single cells. The fabrication and characterization of an optofluidic Fabry-Perot (FP) cavity in glass substrates for this purpose and initial results on obtaining single biological cell spectra were previously reported. Spectra of single biological cells including yeast cells and human blood cells using the optofluidic resonant cavity will be reported in this work. A method for spectral correlation is also presented to verify the preliminary results of the single cell spectra. The correlation calculation demonstrates that the method is able to differentiate some types of single cells.
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