TY - JOUR KW - pfc AU - D. Meiser AU - Jun Ye AU - Daniel Carlson AU - Murray Holland BT - Physical Review Letters DA - 2009-04 DO - 10.1103/PhysRevLett.102.163601 PY - 2009 T2 - Physical Review Letters TI - Prospects for a Millihertz-Linewidth Laser VL - 102 SN - 0031-9007 ER -