TY - JOUR PB - American Physical Society ID - 10.1103/Physics.3.32 TI - Second-harmonic generation in microresonators through natural phase matching JF - Physics JA - Physics J1 - PHYSICS VL - 3 IS - SP - 32 EP - PY - 2010/04/12/ UR - http://link.aps.org/doi/10.1103/Physics.3.32 A1 - Kippenberg, Tobias J. ER -