Microsecond All-Optical Modulation by Biofunctionalized Porous Silicon Microcavity

Petrovszki, Dániel and Valkai, Sándor and Kelemen, Lóránd and Nagy, László and Agarwal, Vivechana and Krekic, Szilvia and Zimányi, László and Dér, András (2023) Microsecond All-Optical Modulation by Biofunctionalized Porous Silicon Microcavity. NANOMATERIALS, 13 (14). No-2070. ISSN 2079-4991

Preview

Text nanomaterials-13-02070.pdf Available under License Creative Commons Attribution. Download (2MB) | Preview

Abstract

We successfully created a composite photonic structure out of porous silicon (PSi) microcavities doped by the photochromic protein, photoactive yellow protein (PYP). Massive incorporation of the protein molecules into the pores was substantiated by a 30 nm shift of the resonance dip upon functionalization, and light-induced reflectance changes of the device due to the protein photocycle were recorded. Model calculations for the photonic properties of the device were consistent with earlier results on the nonlinear optical properties of the protein, whose degree of incorporation into the PSi structure was also estimated. The successful proof-of-concept results are discussed in light of possible practical applications in the future.

Actions (login required)

Edit Item