The present study investigates the use of metasurfaces in the fabrication of
photonic crystals to harness their unique features for improved optical functions.
Metasurfaces, comprised of subwavelength nanostructures, offer unprecedented control
of polarization, amplitude, and phase. When combined with the inherent characteristics
of photonic crystals, such as bandgap formation and light confinement, novel
opportunities arise for manipulating and guiding light at the nanoscale. The present work
investigates the design principles, fabrication techniques, and potential applications of
metasurface-enhanced photonic crystals. This chapter highlights the hybrid integration of
metasurface techniques with photonic crystals and covers essential design issues. It
highlights nonlinear optical phenomena, increased light-matter interactions, and tuneable
bandgaps in metasurface-enhanced photonic crystals. This paper investigates the
reflection and transmission characteristics of metasurface-enhanced photonic crystals,
shedding light on their unique optical properties and potential applications. Furthermore,
the research investigates many applications, such as sensors, light emission devices, and
information processing, highlighting the transformational potential of this combined
method. Through theoretical modeling and experimental validation, we present a
comprehensive analysis of how metasurface enhancements influence the reflection and
transmission spectra, including the emergence of tuneable bandgaps and tailored optical
responses. This chapter advances the understanding of metasurface-based photonic
crystals by providing a roadmap for academics and engineers in the fast-expanding field
of nanophotonics through a critical assessment of problems and future objectives. By
providing insights into the intricate interplay between metasurfaces and photonic crystals,
this work contributes to the advancement of nanophotonics and lays the foundation for
the development of novel devices with enhanced optical functionalities.
Keywords: Metamaterials, Metasurface, Photonic time crystal, Transfer matrix.
