molecular sensor

Rice's SECARS molecular sensor contains an optical amplifier made of four gold discs arranged in a diamond-shaped pattern. A two-coherent-laser setup amplifies the optical signatures of molecules in the center of the structure as much as 100 billion times. Credit: Y. Zhang/Rice University - See more at: http://news.rice.edu/2014/07/15/rice-nanophotonics-experts-create-powerful-molecular-sensor-2/#sthash.AzwnaRlw.dpuf
Rice nanophotonics experts create powerful molecular sensor