[9a-PA6-1~7] 4.3 Laser sources and Laser applications

英語発表

[9a-PA6-2] Development of High-Resolution 800-nm Optical Coherence Microscopy Using a Supercontinuum Light Source

〇(M2)Yu Yin¹, Hidekatsu Ohash¹, Shotaro KITAJIMA¹, Norihiko NISHIZAWA¹ (1.Nagoya Univ.)

キーワード：

optical coherence microscopy、optical coherence tomography、supercontinuum light source

Optical Coherence Tomography (OCT) is an optical imaging technique that utilizes low-coherence interferometry and Fourier transformation to obtain high-speed, high-resolution cross-sectional images of internal microstructures in biological samples. Optical Coherence Microscopy (OCM) is an advanced extension of OCT that combines OCT with confocal microscopy, enabling higher-resolution imaging than conventional OCT.In this study, we developed an OCM system using an 800-nm supercontinuum (SC) mode-locked pulsed laser as the light source. The 800-nm SC mode-locked laser provides a broad spectral bandwidth, high brightness, and excellent spectral stability, which significantly improve the axial resolution and signal-to-noise ratio (SNR) of the OCM system. These characteristics make it particularly suitable for ultra-high-resolution imaging. Using this system, we successfully acquired high-resolution images of biological tissues, demonstrating its great potential for advanced OCT applications.