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SHIELDS, a dual wavelength Spatial Hetrodyne Spectrometer built for Scientific Solutions Inc under and SBIR contract for the Army Corps of Engineers Engineer Research and Development Center Topographic Engineering Center |
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"Monolithic Achromatic Nulling Interference Coronagraph (MANIC), an optic consisting of bonded prisms and a symmetric beamsplitter. See Michelson Interferometers for more details |
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An artistic view of the Doppler Asymmetric Spatial Heterodyne Interferometer, DASH, for the Naval Research Labs. |
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This unusual looking item is an optically contacted stepped phase mask. We called it "the layer cake". |
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This picture gives an indication of the size of the device. Each layer was individually optically contacted to the layer below.
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Custom R&D etalons, fresh off of the dicing machine. The etalons are about 1mm thick. The total block size is 2" x 2". See more etalons.. |
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This michelson interferometer spacer is in process. The Calcium Fluoride spacer is designed to match the thermal expansion of the solid arm of the michelson and to transfer a minimum amount of stress to the end plate. See more Michelson interferometers. |
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This 1/2" air-spaced etalon spacer is shown along side an interferometric view of the same spacer. The spacers need to be made to etalon tolerances since the spacer determines the separation and tilt between the two end plates. See more etalons.. |
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This prism needs to be hand polished flat to lambda/10 and have a defect-free surface prior to optical contacting to an identical prism that has been coated.
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These gradient filters increase in optical density from right to left (clear on one side, green on the other) |
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Gold coated prisms with a chrome over-coat. The chrome over-coat creates a copper color on the outside of the prisms and provides an increased resistance to abrasion. The picture was taken while the prisms were still mounted in the coating tooling. |
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Dual wavelength band, high reflectivity mirrors. The orange red color of the thin film at normal incidence was an unexpected but pleasant surprise. |
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Another monolithic Michelson Interferometer in progress with a waveplate cemented on the far side of the cube. See more michelson interferometers... |
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A block of piezo etalons during the manufacturing process. Volume manufacturing techniques are utilized to achieve consistent high precision at a reasonable cost. See more etalons.. |
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Steep radius Zinc Selenide lens approximately 75mm in diameter. The high index (2.5) of Zinc Selenide and tolerance for high temperature operation make it an excellent choice for lenses in the Infrared. See more high power laser optics.. |
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A beautiful 60mm aperture piezo tunable Fizeau interferometer. End plates are matched to lambda/ 100 over the full aperture. This instrument uses 3 piezo stacks to allow the end mirror to be trimmed for perfect alignment and then the FSR can tuned or scanned through 9um's of movement. more... |
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Lots of gold coated prisms. Low cost, high volume production of precision components requires creativity but can still be easily accomplished in North America |
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Michelson Prototype assembled with waveplates. Beautiful from any angle, see more details about our Michelson interferometers. |
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Our new wave plate mapping system enables us to map retardance over the entire aperture of the wave plate and insure the highest levels of uniformity. |
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Large Michelson interferometer cube, during the manufacturing process. The purple square is the embedded polarizing coating. |
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The FSR of this piezo etalon can be rapidly scanned by changing the voltage on the piezo-electric spacer. |
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Crystal Quartz waveplate sandwiched between two pieces of BK-7, mounted on a holder during the fabrication process |
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Magnesium Fluoride excimer laser optics. Lambda/10 flatness over the laser beam diameter |
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Zinc Selenide and Germanium CO2 laser optics |
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Confocal Resonator optic, 1 meter radius matched in sets to Lambda/20 |
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Other matched pieces coated for operation at YAG laser wavelength |
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Polarizing beam splitter at 1550nm, optically contacted in SF2 glass, for use in a spectrophotometer. |
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Same beam splitter as above, the polarizing coating at 1550nm in the infrared gives a nice red, green split in the visible making it worthy of two photos in our collection |
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These coated prism strips will later be diced into many individual prisms. Our manufacturing techniques produce accurate, high quality optics with a minimum of handling and cost. |
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Look into this beautiful custom etalon and see the internal reflections caused by the parallel surfaces of the optic |
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One etalon is 3mm thick the other is 10mm thick, both have 80% reflectivity on each surface. |
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This nifty assembly combines our skill at polishing and optical contacting with gold coating to create a very parallel and precise 'one of kind' position sensor for a space application. |