His finding indicated that ultimately the resolution of an imaging instrument is not constrained by the quality of the instrument, but by the wavelength of light used and the aperture of its optics.

The lateral optical resolution is given by the quotient of the illumination wavelength, λ, and the numerical aperture, NA, of the projection optics according to the famous Rayleigh formula where ...

In trials, POSTECH applied its system to photoacoustic images of human cardiac fibroblasts, and compared the results to ...

The traditional limit for resolution in optical imaging, known as the diffraction limit, restricts the ability to see details smaller than half the wavelength of light. This new imager overcomes ...