Other Products & Services
Cutting/Dicing
Onyx can cut and dice Adhesive-Free Bond (AFB®) composite YAG and AFB® composite YAG/sapphire components, as well as other material combinations. We can cut and dice waveguiding structures, passively q-switched microchips, and others.
CVD Diamond
Onyx can AFB® CVD diamond to YAG or sapphire with or without coatings at the interface. The CVD diamond is popularly used as a heat-sink.
Flanged Rods/Slabs
Onyx can create light-guiding contours for rod and slab AFB® composite designs.
IR Windows
Onyx can apply its Adhesive-Free Bond (AFB®) technology to form large composite IR windows from materials such as sapphire, AlON, or spinel. Our current equipment allows for windows up to 12" x 18", but our technology is feasible for larger sized windows.
Laser Scribing, Grooving, and Cutting
We have the ability to provide laser scribing, grooving, and cutting for AFB® components, allowing for serialization or other identification inscriptions. A range of characters, as well as varying scribe widths and depths, are available. This service is applicable to a wide range of electro-optic materials, including diamond.
Measurement Capabilities
Onyx has many in-house measurement capabilities, including:
- Measurements to sub-micron accuracies
- 0.3 - 3 µ spectrophotometer tracing
- Phase and wavelength shifting interferometry
- Stress birefringence measurements
- Quantitative measurements of surface figures
Mechanical properties
- Fracture strength with sample preparation according to ASTM C1161-02c by four-point bending with full documentation and Weibull analysis
- Elastic modulus of laser crystals and optical ceramics by precision interferometric strain measurement with complete documentation
- SEM of grain sizes and grain size distribution of optical ceramics
- Laser marking, scribing, and cutting
Optical properties
- Refractive index at 1.55 nm: ±0.0003 This measurement is useful for designing AFB® waveguides and can be performed with crystals intended to be used for fabrication
- Surface finish through non-contact measurement: ±0.4 Å rms
- Surface figure in presence of Fizeau internal fringe patterns
- Transmitted wavefront at 633 and 1550 nm
- Absorption and transmission spectra between 300 and 3000 nm
- FTIR measurements of infrared materials
- Micro-Raman spectroscopy
Polishing
Onyx is well-equipped with polishing capabilities, as polishing is a critical aspect of our AFB® process. We can provide optical finishing for our AFB® composites and offer polishing services for non-composites. Specific capabilities include component thicknesses to tens of microns and barrel polishing of rods. Our polishing averages 2-3 Å surface roughness.
Raman Spectroscopy
Onyx can employ Raman spectrophotometry in order to identify molecular species, such as the differentiation of the graphite and diamond species. Two laser sources (532nm and 325nm) are available for excitation with a micro-Raman capability, with spectral resolution of 0.3 cm-1; spatial resolution of < 1 µm; and objectives of 10X, 50X, and 100X.
Scanning Electron Microscopy (SEM)
We offer stereoscopic observation for the inspection of component defects and damage sites. We have magnifications ranging from 20 –10,000X with a greater depth of focus and higher magnification than conventional microscopy. No sample preparation is required.
Walk-Off Correction
Onyx now offers the walk-off correction of non-linear crystals such as KTP and ZGP through our AFB® process. We possess the criteria to design walk-off corrected AFB® composites employing uniaxial and biaxial crystals.
Onyx offers walk-off correction of non-linear crystals such as KTP and ZGP through our AFB® process. We can manufacture walk-off corrected (WOC) composites according to customer specifications and are able to assist with the complete design of WOC components or devices.
Onyx has recently obtained an exclusive license from the U.S. Department of Energy to practice the inventions described in U.S. Patent No. 6,544,330, entitled "Bonded, Walkoff Compensated Optical Elements."