Optical Coherence Tomography (OCT) Imaging System- High Resolution

ThorLabs Ltd. High Resolution Ganymede OCT Imaging System GAN620C1 - 900nm

The Thorlabs Ganymede Series High-Resolution OCT Imaging System is designed for detailed, real-time optical coherence tomography (OCT). The instrument operates similarly to ultrasound with the use of light waves instead of sound. It delivers high axial and lateral (cross-sectional) resolution for precise imaging of biological tissues and materials. With rapid data acquisition and advanced signal processing, it provides clear, high-contrast images. Its modular design allows customization for various applications, including biomedical research and industrial inspection. The system supports multiple scanning configurations, enhancing flexibility for diverse imaging needs. Ideal for applications requiring detailed structural analysis, Thorlabs’ High-Resolution OCT system offers a powerful and adaptable solution for high-precision imaging.

Description

The Ganymede Series systems utilise spectral-domain optical coherence tomography (SD-OCT) technology, which is a method which provides high-resolution, cross-sectional imaging based on low-coherence interferometry. In SD-OCT, a swept source laser is incident on the sample, from which the backscattered light from different depths is analysed using a detector which enables high-resolution imaging of internal structures in biological tissues and materials.

The system is optimised primarily for high-speed imaging with A-scan rates that reach up to 248 kHz. In OCT, an A-scan represents a single depth profile, while B-scans are formed by stacking multiple A-scans together to create cross-sectional (2D) images. With higher A-scan rates, the system can acquire images faster.

ThorImageOCT software provides real-time image acquisition, processing, and data visualisation. The software includes advanced features such as:

  • Live Display & Averaging which aids in reducing measurement noise and therefore enhances image quality.

  • 3D Volume Rendering which enables the user to dissect volumetric datasets interactively.

  • Time-Series Imaging allows the operator to capture dynamic changes over time.

Uses / Applications

Biomedical Research: Tissue imaging, collagen analysis, vascular studies, and monitoring biological processes.

Material Science: Subsurface defect detection, structural analysis, and quality control.

Industrial Inspection: Non-destructive testing of layered structures and product integrity verification

Specification

  • Micron-scale resolution for detailed cross-sectional and volumetric imaging.

  • High-Speed Imaging allows for A-scan rates of up to 248 kHz for real-time imaging of moving samples. Doppler and Speckle Variance Imaging allowing visualisation of vascular structures and various biological processes.

  • 900 nm centre wavelength, 3.0 µm Resolution in air, 5.5 to 248 kHz A-scan/Line Rate, 1.9 mm (air)/ 1.4 mm (water) imaging depth, 3.0µm/2.2 µm axial resolution

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