4.3 THz quantum-well photodetectors with high detection sensitivity

Zhang Zhenzhen^{1, 3}, Fu Zhanglong¹, Guo Xuguang², Cao Juncheng^{1, †}

(color online) (a) Optical microscope image of a terahertz QWP mesa with a surface area of 800 μ m × 800 μ m . (b) Schematic plot of the cross-section of a terahertz QWP with a 45° edge facet.