Ocean Optics - Inventor of the World's First Miniature Spectrometer
Ocean Optics - Inventor of the World's First Miniature Spectrometer
 

Ocean Optics - Inventor of the World's First Miniature Spectrometer


STAN-SSH High-reflectivity Specular Reflectance Standard

 The STAN-SSH High-reflectivity Specular Reflectance Standard is a mirrored, fused-silica standard that can be used as a  reference when measuring surfaces with high specular reflectance values such as optical substrates, optical coatings, machined metals and semiconductor materials. The STAN-SSH provides an ~85-90% reflectance across the 200-800 nm wavelength range and an ~85-98% reflectance across the 800-2500 nm range.

The STAN-SSH is available in two versions. The STAN-SSH is $524, and the NIST-traceable STAN-SSH-NIST is $1049.

The NIST-traceable STAN-SSH-NIST is calibrated to a NIST master (NIST part number NIST38060S, s/n 99G16) with approximately 1.0% accuracy from 250-2500 nm). With the shipment of the NIST-traceable version, the customer will receive a certificate of calibration, a data sheet with the reflectance values as a function of wavelength and a diskette which contains calibration data that can be transferred to Ocean Optics Spectrometer Operating Software.

A periodic recalibration of the STAN-SSH-NIST is recommended. Ocean Optics offers a recalibration service (STAN-SSH-RECAL) for Call for Price. Should the calibrated surface become corrupted, a recoat and calibration service is offered for only $299.

The STAN-SSH substrate measures 1.25" in diameter and is housed in a sturdy 1.5" x 0.75" blue anodized aluminum enclosure and protected by a screw-on top.

User's Tips

  • With an Ocean Optics spectrometer, the use of the STAN-SSH is limited to 200-1100 nm.
  • Use the STAN-SSH to set a high-reflectivity reference.
  • Although the STAN-SSH aluminum coating is protected with with a proprietary overcoat, the user should handle the standard with care in order to avoid corrupting the integrity of the calibrated surface. The surface should not be touched by hands or objects to avoid contaminating or damaging the surface.
  • To clean the STAN-SSH surface, first remove dirt and dust by blowing it off with a pressurized gas. Then use the drag method of cleaning to remove fingerprints and residual contaminants. In the drag method, lens tissue saturated with reagent-grade isopropyl alcohol or acetone is slowly dragged across the surface. Done correctly, the solvent will evaporate uniformly with no streaking or spotting. Bare metallic coatings are delicate and cannot be cleaned in this manner. Dirt and fingerprints will permanently damage a bare metal-coated mirror so a user should handle the STAN-SSH carefully to prolong the life of the coating.

STAN-HOLDER Reflectance Standard Holder

The STAN-HOLDER is a convenient accessory option for keeping the standard in place during measurements. STAN-HOLDER is available for $79.

STAN-SSH Specular Reflectance 

STAN-SSH Specular Reflectance

Specifications

Substrate Dimensions: 1.25" outer diameter x 0.25" height
Housing Dimensions: 1.5" outer diameter x 0.75" height
Reflectance material: Mirrored, fused-silica with protective overcoat
Reflectivity:

  • ~85-90% (200-800 nm)

  • ~85-98% (800-2500 nm)

 

 

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