2025 Volume 2025 Article ID: 250418
Near-field optical microscopy is a super-resolution technique that utilizes localized light generated at the tip of a metal probe to enable nanoscale optical imaging and analysis. It supports various optical measurements, including Raman spectroscopy, infrared absorption measurement, and photoluminescence spectroscopy, all at the nanoscale as a versatile tool. Recent progress in this field has not only significantly enhanced spatial resolution but also introduced innovative technologies aimed at improving its overall analytical capabilities. This article provides an overview of the recent advancements in near-field optical microscopy, incorporating our research achievements to highlight emerging trends and applications.