Influence of One-Dimensional Photonic Crystal on Raman Signal Enhancement: A Detailed Experimental Study.

ABSTRACT: The enhancement of Raman signals using photonic crystal structures has been the subject of numerous experimental and theoretical studies, leading to a variety of issues and inconsistencies. This paper presents a comprehensive experimental investigation into the impact of alignment between the laser excitation wavelength and the specific position of the photonic band gap on signal enhancement in Raman spectroscopy. By employing one-dimensional (1D) porous silicon photonic crystals, a systematic analysis across a large number of spectra was conducted. The study focused on examining the signal enhancement of both the Raman ∼520 cm^-1 silicon band, representing the constituent material of photonic crystal, and the most prominent Raman bands of crystal violet, used as a probe molecule

SUBMITTER: Krajacic M 

PROVIDER: S-EPMC11850702 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature