A team led by Professor Huanan Li and Professor Jingjun Xu of the School of Physics of Nankai University, in collaboration with the team led by Professor Andrea Alù of the Advanced Science Research Center (ASRC) of the City University of New York and Professor Boris Shapiro of the Israel Institute of Technology, discovered that a stationary charge embedded in anisotropic photonic time crystals (APTCs) can extract energy from time modulation to produce coherent radiation and then couple with the Floquet mode in the momentum band gap to amplify it exponentially.
Click here for original story, Researchers discover new radiation effects in photonic time crystals
Source: Phys.org