[1] Stanford Univ, EL Ginzton Lab, Stanford, CA 94305 USA
[2] Sungkyunkwan Univ, Seoul 03063, South Korea
[3] Ecole Polytech Montreal, Montreal, PQ H3T 1J4, Canada
[4] Univ Florida, Dept Phys, Gainesville, FL 32611 USA
[5] Univ Strathclyde, Dept Biomed Engn, SUPA, Glasgow City G1 1QE, Scotland
[6] SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA
[7] Colorado State Univ, Dept Elect & Comp Engn, Ft Collins, CO 80523 USA
[8] Univ Montreal, Dept Phys, Montreal, PQ H3T 1J4, Canada
[9] Xerion Adv Battery Corp, Kettering, OH 45420 USA
[10] CALTECH, LIGO Lab, Pasadena, CA 91125 USA