TY - CONF AU - Diddams, Scott AU - Vogel, K AU - Oates, Christopher AU - Curtis, E AU - Lee, W AU - Itano, Wayne AU - Drullinger, Robert AU - Bergquist, James AU - Hollberg, Leo C2 - European Conf. on Time and Frequency , Besancon, -1 DA - 2001-01-01 LA - en PB - European Conf. on Time and Frequency , Besancon, -1 PY - 2001 TI - All Optical Atomic Clocks Based on a Single Mercury Ion and Calcium Atoms UR - https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=105188 ER -