The SPIE Digital Library and the SPIE Newsroom are two great sources for photonics research. Using the most recent data available (1 Feb. through 28 Feb.), here is a selection of the most frequently downloaded papers on the Digital Library and the most read articles on the Newsroom.
SPIE Digital Library
"Color matching that improves image quality on mobile phone displays," by Yeong-Ho Ha and Chang-Hwan Son. http://spie.org/x8463.xml
"Towards lab-on-a-chip sensors with liquid-core optical ring resonators," by Xudong Fan, Ian White, Hongying Zhu, Jonathan Suter, and Hesam Oveys. http://spie.org/x8477.xml
"Ultrasensitive detection of nonfluorescent molecules in microspace," by Takehiko Kitamori and Kazuma Mawatari. http://spie.org/x8524.xml
"High-performance transparent thin-film transistors," by Tobin J. Marks, Antonio Facchetti, Lian Wang and Myung-Han Yoon. http://spie.org/x8451.xml