The pixel pitch of a SWIR (Short-Wave Infrared) sensor refers to the distance between the center points of adjacent pixels on the sensor's imaging array. In other words, it represents the physical size of each pixel on the sensor. Pixel pitch is typically measured in micrometers (μm).

A smaller pixel pitch means that the pixels are packed more densely on the sensor's surface, allowing for higher spatial resolution and potentially better image quality. However, smaller pixel pitches can also increase manufacturing costs and may require more sophisticated fabrication techniques to maintain sensor performance.

The pixel pitch of a SWIR sensor is an important parameter to consider when evaluating its performance for various applications, especially those that require high-resolution imaging or precise spatial measurements.

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