Hybrid Structures of Photonic Crystals &
Mesoporous Films
Reflectivity (arb. units)
As-Grown
Dose 1
Dose 2
Photonic
Crystal
Mesoporous
Film
520
540
564
560
580
600
620
Wavelength (nm)
562
substrate
Defect Peak (nm)
560
Photonic
Crystal
558
556
554
552
550
548
The hybrid structure is fabricated by embedding a mesoporous
layer in between two photonic crystals made up of silica
spheres. The mesoporous layer acts as a defect layer,
transmitting light at a specific wavelength that was previously
forbidden. This is exhibited as a dip in the reflectivity spectrum.
0
1
2
3
4
# TMOS exposures
As a chemical (TMOS) is infiltrated into the pores of the
mesoporous layer, sandwiched between two photonic crystals,
the defect peak red-shifts.