Super-resolution noninvasive confocal quantum microscope

Excellent resolving power, noninvasive and excellent image contrast are needed features of a high-quality microscope. To achieve the first feature, a shorter wavelength of light is necessary. On the other hand, a shorter wavelength of light destroys the second feature. The occurrence of the two features together is very critical. Recently, Karmakar et al. reported non-invasive high resolving power quantum microscope by using two-color ghost imaging technology [1,2]. However, this article reports a confocal microscope having super-resolution and noninvasive features by using another quantum mechanical phenomenon. In addition, this confocal microscope may provide very high image contrast.