Fig. 4: Temperature-dependent CPGE of Te.

a \({\theta }_{\lambda /4}\)-dependent photocurrent at different temperature. b Temperature-dependent CPGE amplitude of the Te device. Photocurrent was measured under 4.0-μm excitation of 500 μW.

a \({\theta }_{\lambda /4}\)-dependent photocurrent at different temperature. b Temperature-dependent CPGE amplitude of the Te device. Photocurrent was measured under 4.0-μm excitation of 500 μW.