Electrical modulation of silicon-based two-dimensional photonic bandgap structures
Electrically tunable photonic band gap (PBG) structures hold the potential to become a
versatile and compact backbone for optical signal processing. In this letter we report
electrical tuning of silicon-based two-dimensional PBG structures infiltrated with liquid
crystals. An improved electrode configuration is used to avoid electric field screening by the
conductive silicon walls. Electrical tuning using fields well below 1 V∕ μ m is demonstrated
experimentally using both polarized light microscopy and reflectance PBG measurements …
versatile and compact backbone for optical signal processing. In this letter we report
electrical tuning of silicon-based two-dimensional PBG structures infiltrated with liquid
crystals. An improved electrode configuration is used to avoid electric field screening by the
conductive silicon walls. Electrical tuning using fields well below 1 V∕ μ m is demonstrated
experimentally using both polarized light microscopy and reflectance PBG measurements …
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