posted on 2010-04-12, 00:00authored byZachary H. Levine, Bruce R. Borchardt, Nolan J. Brandenburg, Charles W. Clark, Bala Muralikrishnan, Craig M. Shakarji, Joseph J. Chen, Eliot L. Siegel
Originally published in Optics Express on 12 April 2010 (oe-18-8-8151)