Where to Buy Supermirrors

OPTOMAN's extremely low-loss mirrors have a maximum reflectivity of R > 99.998% and total losses (absorption, scatter, and transmission) below 15 ppm at a discrete wavelength and angle of incidence. Coatings are applied on high purity fused silica substrates (plane, spherical or wedged) super-polished to an RMS roughness of <2 Å. Mirrors are available with a CRD measurement that prove reflectivity and loss values.

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So-called supermirrors for ring laser gyroscope assemblies or certain scientific applications require coated optics with extremely low losses (i.e. absorption and scattering). These mirrors also have a maximum reflectivity with R > 99.998% and total losses < 10 ppm.

LASEROPTIK uses a modified IBS machine that is capable to produce coatings on super­polished substrates. The cleanliness of the machine and environment is maintained in a dedicated super-clean room, where also the extensive substrate pre- and after-treatment takes place.

Measurement devices such as whitelight profilometers and high resolution microscopes (up to × 1000) for the inspection procedures are in place. A custom built cavity ring-down setup allows to determine the reflection with a precision of up to four decimal places and to refer back to the losses.

UltraFast Innovations (UFI) offers supermirrors with a reflectivity exceeding 99.99%. Our magnetron sputtering facility offers the best technology for ultra-high reflection mirrors due to the extremely dense layers. More than 99.997% reflection over a bandwidth of 200 nm or more is achievable.

Characterization of these mirrors is performed in a cavity ring-down measurement device with ppm-level precision.