In-plane hyperbolic phonon polaritons in α-MoO3 crystals hold promise for terahertz (THz) and longwave infrared (LWIR) photonic applications, but their coupling with far-field excitations remains challenging. Here, the authors report the fabrication of α-MoO3 ribbon arrays that can be applied as tunable THz and LWIR filters and polarizers.
- Wuchao Huang
- Thomas G. Folland
- Shaozhi Deng