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.

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.