April 2014

Fourier ptychographic microscopy can boost the imaging power of standard microscopes through a simple LED array and computational optics. Illustration by Yan Liang and Guoan Zheng.

cover feature open

Fourier Ptychographic Microscopy: A Gigapixel Superscope for Biomedicine

Guoan Zheng, Xiaoze Ou, Roarke Horstmeyer, Jaebum Chung and Changhuei Yang

A simple modification, combined with computational optics, can boost the resolving power of standard microscopes by more than an order of magnitude—and open up new applications in both the lab and the clinic.

Feature

Expanding OCT: Quanitifying the Cornea’s Optical Performance

Ryan P. McNabb, Anthony N. Kuo and Joseph A. Izatt

Optical coherence tomography, a well-known method for imaging the retina, may allow physicians to perform quantitative metrology of the eye’s own optics.

Feature

Optics on the Brain: OSA’s Mulitphoton and Patterned Optogenetics Incubator

Hillel Adesnik, Laura Waller and Shy Shoham

A December 2013 OSA incubator meeting highlighted the role of cutting-edge optics and photonics in solving the mysteries of neuroscience—and helped forge connections between researchers in the two communities.