[2] K. König. Multiphoton microscopy in life sciences. J. Microsc., 200, 83-104(2000).
[11] X. Fan, S. H. Yun. The potential of optofluidic biolasers. Nat. Methods, 11, 141-147(2014).
[12] N.-T. Nguyen. Micro-optofluidic lenses: a review. Biomicrofluidics, 4, 031501(2010).