Waveguide arrays for light harvesting in microfluidic chips

We demonstrate a way of light harvesting in integrated microfluidic chips fabricated by femtosecond laser micromachining. The architecture consists of waveguide arrays fabricated in the vicinity of the microchannel filled with a fluorescent organic solution (e. g., polyfluorene solution). Amplified spontaneous emission from the microchannel is efficiently coupled by the waveguides to the outside of the chip. (C) 2014 Society of Photo-Optical Instrumentation Engineers (SPIE)