The Sigma 23mm F1.4 DC DN Contemporary ($599) turns the company's value-minded F1.4 Contemporary trio into a quartet, with an ...

(Courtesy: R.G. MacDonald, A. Yakovlev, and V. Pacheco-Peña, doi : 10.1117/1.APN.3.5.056007) Waveguide-based structures can solve partial differential equations by mimicking elements in standard ...

When laser energy is deposited in a target material, numerous complex processes take place at length and time scales that are ...

When laser energy is deposited in a target material, numerous complex processes take place at length and time scales that are too small to visually observe. To study and ultimately fine-tune such ...