[IEEE The Pacific Rim Conference on Lasers and Electro-Optics (CLEO/PACIFIC RIM) - Shanghai, China (2009.08.30-2009.08.3)] 2009 Conference on Lasers & Electro Optics & The Pacific Rim Conference on Lasers and Electro-Optics - An ultrasensitive field effect charge sensor for label-free biomolecule detection