The Micro_optics_ and Micro_fluidics_ Lab has an opening for a postdoctoral fellow starting in the summer, 2012. Candidates should be interested in developing optical systems for fluorescence and 3D imaging of cells in moving fluids. The ideal candidate would have experience with computational and experimental optics. Other helpful backgrounds include micro- and nano-fabrication, microfluidics, fluorescence microscopy and cell mechanics. Applicants should send a C. V. and cover letter to Ethan Schonbrun at schonbrun@rowland.harvard.edu .