New colors found utilizing lasers and ion cascades.
True, the pink is a lie. But a UC Santa Barbara research team has honestly just generated eleven new hues using lasers and ion cascades.
The team created the new colors by aiming a pair of lasers—one high-frequency, the other low-frequency—at a slab of semiconductor material, a gallium arsenide nanostructure. The high-frequency beam separates an electron from its host atom, generating what’s known as an exciton (a bonded pair consisting of a negatively-charged electron and a positively-charged host). The powerful, low frequency wave then accelerates the freed electron, which goes crashing into the electron-less atom in front of it. Since the electron has extra energy from the acceleration when it recombines with the host atom in front of it, that energy is radiated as light. Previously unseen frequencies of light…
While the general public might not be ready yet to comprehend the color blorange, this technique could prove quite useful in high-speed data transfers. As Ben Zaks, a UCSB doctoral student in physics and the paper’s lead author, explained to Science Daily,
The team hopes to eventually develop this technology to run, not on the free electron laser used in this experiment, but on a transistor operating at terahertz frequencies. “Our data indicates that we are modulating the near infrared laser at twice the terahertz frequency. This is where we could really see this working to increase the speed of optical modulation, which is how you get information down a cable line,” Zecks said.