Scanning near-field optical microscopy utilizing silicon nitride probe photoluminescence

V Lulevich, WA Ducker – Applied Physics Letters, 2005 –
… A small drop of index matching liquid (microscope oil type B, refractive index 1.515, Cargille,
US) was placed between the lens and the surface. A thermoelectrically cooled diode laser (532
nm, 10 mW, TECGL-10, World Star Tech., Canada) was used as a light source. …