This is the world’s smallest silicon (Si) light-emitting diode (LED) - smaller than the wavelength of light - with a light intensity comparable to much larger, state-of-the-art Si LEDs and with ...

We describe two-step fluorescence microscopy, a new approach to non-linear imaging based on positive reversible photoswitchable fluorescent probes. The protein Padron approximates ideal two-step ...

Engineers at Caltech say that their approach -- computing their way past optical limitations -- could bring high-performance microscopes to medical clinics in developing countries. Elizabeth Armstrong ...

As a kid, were you ever curious to know what lice looked like from really close by? Or even a mosquito? To do this you would definitely need to use a microscope, in order to observe all the complex ...