Last year, I found myself compelled to make a scaled-down replica of the iconic test chamber signs from the video game Portal. If you’ve played the game, you’ll remember these signs as the illuminated ...

It is no mystery that light is essential to human life. Since the discovery of fire, humans have developed various artificial light sources, such as incandescent lamps, gaslights, discharge lamps, and ...

Optical diffusers alter the angular divergence of incident light, thereby reducing the sensitivity of a detection system to slight positional or angular changes in an incoming beam. This allows for ...

Schematics of the LC molecular orientation and the transmitted light in the absence (left) and in the presence (right) of the ultrasound excitation. Red and blue curves represent the light and the ...