Abstract
The detail extensive property of phonon polaritons in wide bandgap semiconductor hexagonal boron nitrides is numerically analyzed and presented. The quasi-particles strongly coupled with photons of light within the hexagonal boron nitrides layer, the resultant wave-like quantum particle resides and propagates at the surface with properties similar to well-known plasmon polaritons in metals. These new class of phenomena provides a means to confine, control, and propagates electromagnetic energy into deep subwavelength scales, which was considered challenging prior to their exploration.