TY - JOUR
T1 - Self-assembled three-dimensional inverted photonic crystals on a photonic chip
AU - Arpiainen, Sanna
AU - Vynck, Kevin
AU - Dekker, James
AU - Kapulainen, Markku
AU - Khunsin, Worawut
AU - Aalto, Timo
AU - Mulot, Mikael
AU - Kocher-Oberlehrer, Gudrun
AU - Zentel, Rudolf
AU - Torres, Clivia M.Sotomayor
AU - Cassagne, David
AU - Ahopelto, Jouni
PY - 2017/9/1
Y1 - 2017/9/1
N2 - Three dimensional photonic crystals (PhCs) exhibiting a
full photonic band gap have high potential in optical
signal processing and detector applications. However, the
challenges in the integration of the 3D PhCs into
photonic circuits have so far hindered their exploitation
in real devices. This article demonstrates the
fabrication of 3D PhCs exploiting the capillary directed
self-assembly (CDSA) of monodisperse colloidal silica
spheres, their inversion to silicon shells, and
integration with silicon waveguides. The measured
transmission characteristics agree with numerical
predictions and provide strong indication of a full
photonic band gap in the inverted 3D photonic crystals at
wavelengths close to 1.55µm. Silicon inverted photonic
crystal self-assembled into a cavity in a waveguide
intersection and the corresponding photonic band
structure of the crystal, together with the simulated
transmission, reflection, and absorption spectra.
AB - Three dimensional photonic crystals (PhCs) exhibiting a
full photonic band gap have high potential in optical
signal processing and detector applications. However, the
challenges in the integration of the 3D PhCs into
photonic circuits have so far hindered their exploitation
in real devices. This article demonstrates the
fabrication of 3D PhCs exploiting the capillary directed
self-assembly (CDSA) of monodisperse colloidal silica
spheres, their inversion to silicon shells, and
integration with silicon waveguides. The measured
transmission characteristics agree with numerical
predictions and provide strong indication of a full
photonic band gap in the inverted 3D photonic crystals at
wavelengths close to 1.55µm. Silicon inverted photonic
crystal self-assembled into a cavity in a waveguide
intersection and the corresponding photonic band
structure of the crystal, together with the simulated
transmission, reflection, and absorption spectra.
KW - integration
KW - inverted opals
KW - photonic band gap
KW - photonic crystals
KW - waveguides
KW - OtaNano
UR - http://www.scopus.com/inward/record.url?scp=85020189066&partnerID=8YFLogxK
U2 - 10.1002/pssa.201700039
DO - 10.1002/pssa.201700039
M3 - Article
SN - 1862-6300
VL - 214
JO - Physica Status Solidi A: Applications and Materials Science
JF - Physica Status Solidi A: Applications and Materials Science
IS - 9
M1 - 1700039
ER -