Infrared-reflection-mode near-field microscopy using an apertureless probe with a resolution of lambda/600

Opt Lett. 1996 Sep 1;21(17):1315-7. doi: 10.1364/ol.21.001315.


We report a near-field optical microscopy experiment at lambda = 10.6 microm, using an apertureless metallic tip functioning simultaneously in the atomic force microscopy tapping mode. The 17-nm optical resolution (lambda/600) that we achieved confirms the validity and the potential of this concept for numerous applications.