Systems and methods for near-field, interferometric microscopy are disclosed in which a mask having an array of sub-wavelength apertures is used to couple near-field probe beams to a sample. The periphery of the mask further includes one or more larger apertures to couple light to the sample that forms...http://www.google.com.au/patents/US6552805?utm_source=gb-gplus-sharePatent US6552805 - Control of position and orientation of sub-wavelength aperture array in near-field microscopy
