“…However, the use of such microscope keeps growing during the last 10 years especially due to its ability to make very local detection of the light distribution surrounding very small samples. Thus, quantum dots [3][4][5][6], photonic crystals [7][8][9][10][11][12][13], or nonlinear materials (Raman, fluorescence, ...) [14][15][16][17] are currently characterized thanks to optical near-field microscopes working with conventional tips (coated or uncoated tapered optical fibers). Apertureless nearfield optical microscopes are often used by exploiting the tip effect, also named the "antenna effect", that leads to a large light confinement at the tip apex (see [18] and references therein).…”