Spontaneous emergence of periodic patterns in a biologically inspired simulation of photonic structures.
We simulate an evolutionary process in the lab for designing a novel high confinement photonic structure, starting with a set of completely random patterns, with no insight on the initial geometrical pattern. We show a spontaneous emergence of periodical patterns as well as previously unseen high confinement subwavelength bowtie regions. The evolved structure has a Q of 300 and an ultrasmall modal volume of 0.112 (lambda/2n)3. The emergence of the periodic patterns in the structure indicates that periodicity is a principal condition for effective control of the distribution of light.
Gondarenko
Alexander
A
Cornell University, Ithaca, NY 14850, USA.
Preble
Stefan
S
Robinson
Jacob
J
Chen
Long
L
Lipson
Hod
H
Lipson
Michal
M