Designing a tuneable Quantum Cascade Laser for mid-infrared frequency operation.
Investigation of thermally excited surface phonon polaritons in nanostructured polar dielectric materials.
We demonstrate our design of a stable tuneable quantum cascade laser with extremely narrow operational frequency that can be tuned digitally.
Here we design, fabricate, and experimentally study Cavity Resonator Grating Filters that are used to design a tuneable QCL in mid-infrared frequency range.