TY - JOUR AU - H. Hamann AU - Alan Gallagher AU - David Nesbitt BT - Applied Physics Letters DA - 1998-09 DO - 10.1063/1.122176 PY - 1998 EP - 1469 T2 - Applied Physics Letters TI - Enhanced sensitivity near-field scanning optical microscopy at high spatial resolution VL - 73 SN - 00036951 ER -