Home Products Technical Services Silicon Optics with Large Sag

Silicon Optics with Large Sag

High refractive index (n=3.4), hard material resistance, low temperature sensitivity, and low density (2.329 g/cm?).

Lens sag value as large as 4 mm (4000 ?m) at exit angle of 0° ~ 80°, and maximizes the numerical aperture (NA).

Deep-sag decentered lenses, blazed gratings, chirped arrays or integrated prisms.

Silicon Optics with Large Sag

Key Specifications

  • Optics manufactured with silicon material, fully taking advantage of the intrinsic characteristics of silicon material, such as high refractive index (n=3.4), hard material resistance, low temperature sensitivity, and low density (2.329 g/cm3).
  • By Focuslight’s unique wafer-level simultaneous structuring technology, the lens sag can achieve as large as 4mm (4000?m) at an exit angle of 0° ~ 80° on silicon optic, which maximizes the numerical aperture (NA) that a silicon optics could achieve.
  • Enabling products that have been hard or impossible to be produced by classical lithographical technologies, such as deep-sag decentered lenses, blazed gratings, chirped arrays or integrated prisms.
  • A precise and optimized design of a proper coating recipe for silicon optics and production process of optical coating can ensure good product performance and long-term operational reliability.?AR coating available up to R<0.2% and bandwidth up to 1200 nm.
  • Scalable and cost-effective production technology suitable for very high quantities, making the product affordable for IoT, biosensing, smart terminals, etc.

 

Symmetric and Asymmetric Microstructures Processed by Focuslight

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