An integrating sphere is a hollow spherical cavity coated with a white diffuse reflective material. Also known as a photometric sphere or luminous flux sphere, it features one or more window ports on the sphere wall for light entry and sensor placement. The inner wall is coated with ideal diffuse materials like foamed PTFE or gold coatings, mixed with adhesive and sprayed uniformly. Magnesium oxide coatings exhibit a spectral reflectance of over 99% in the visible range, allowing the light entering the sphere to undergo multiple reflections and form uniform irradiance on the inner wall.

The GIP Series Gold-Coated Integrating Sphere adopts electrochemical plating technology to form a diffuse gold reflective coating, offering excellent stability. It achieves a typical diffuse reflectance above 94% in the infrared region (>1000 nm). When tested with a 10.6 μm CO₂ laser, its damage threshold reaches ~19.3 J/cm². An optional water-cooling system can be integrated to further raise the maximum handling power.

Technical Advantages:

Application Fields:

Infrared laser power measurement, laser output characterization, IR spectroscopy, spectral responsivity testing of photodetectors, and more.

Technical Specifications:

SpectralPhotonics provides customized integrating sphere solutions based on your specific application needs. Feel free to contact us for detailed consultation.