Thermal imaging cameras, or infrared cameras, are unlike the cameras found in your smartphone. A typical camera observes the wavelengths of light in the visible spectrum that bounce off objects and ...

From left to right: Schematic of the nonlinear optical mirror used for up-conversion imaging. Energy diagram showing the sum frequency generation process used for up-conversion. Representative ...

In a new study published in Science, researchers have developed a new method for detecting infrared light by changing its frequency to a corresponding frequency in the range of visible light.

A study published in Advanced Materials reports that scientists at ETH Zurich have developed an ultra-thin lens capable of converting infrared radiation into visible light by halving the wavelength of ...