Tuning of reflection spectrum of a monolithic high-contrast grating by variation of its spatial dimensions

Optics Express
Magdalena MarciniakT Czyszanowski

Abstract

We report the first experimental parametric analysis of subwavelength monolithic high-contrast grating (MHCG) mirrors. To date, subwavelength grating mirrors have been fabricated by suspending a thin grating membrane in the air or placing it on a low refractive index material - a scheme that requires sophisticated processing and makes the gratings sensitive to mechanical stress, impeding current injection, and heat dissipation if used in active devices. Inherently MHCGs are well suited for optoelectronic devices because they can be fabricated in all possible material systems. Here we demonstrate above 90% optical power reflectance, strong polarization discrimination. Based on experimental analysis aided by numerical simulations, we demonstrate the possibility of tuning the spectral characteristics of MHCGs reflectance for more than 200 nm via modification of the duty cycle of the MHCG stripes. We show our MHCG tuning method is convenient to define the properties of MHCG devices during the device processing.

References

Aug 20, 2010·Optics Express·Vadim KaragodskyConnie J Chang-Hasnain
May 5, 2011·Optics Letters·Vadim KaragodskyConnie J Chang-Hasnain
Oct 17, 2014·Optics Express·Marcin GębskiTomasz Czyszanowski
Jul 30, 2016·Optics Letters·Magdalena MarciniakTomasz Czyszanowski
Mar 17, 2019·Optics Express·M GębskiT Czyszanowski

❮ Previous
Next ❯

Citations

Feb 13, 2021·Optics Letters·Hsin-Yu Yao, Tsing-Hua Her

❮ Previous
Next ❯

Related Concepts

Related Feeds

Cell Imaging in CNS

Here is the latest research on cell imaging and imaging modalities, including light-sheet microscopy, in the central nervous system.