Optical Components Transmission windows
Diamond Windows
Lets a beam through while keeping two environments separate.
Good to know
- The clear aperture differs from the overall mounting diameter.
- Window thickness and mounting design depend on pressure and mechanical loading.
- Coatings and seals need compatibility with the wavelength and environment.
Specifications
What we define for diamond windows, with units and how each is typically measured. We confirm values for your application in technical review.
Request the datasheetLook up a term in the glossaryDimensions & tolerances
| Parameter | Unit | Typical test method |
|---|---|---|
| Clear aperture | mm | Optical measurement to drawing |
| Thickness and tolerance (bulk or layer) | mm | Micrometer or optical gauge |
| Parallelism or wedge | arcmin | Autocollimator or interferometry |
| Lateral size, outline or diameter, and tolerance | mm | Optical measurement |
| Flatness or surface figure, and bow | µm or fringes | Interferometry (633 nm) or profilometry |
| Edge condition and chip limit | Microscopy inspection to drawing |
Surface & finish
| Parameter | Unit | Typical test method |
|---|---|---|
| Surface roughness per side | nm Ra | Profilometry or AFM |
Optical performance
| Parameter | Unit | Typical test method |
|---|---|---|
| Coating construction and thickness | nm | Spectrophotometry, XRF or cross-section |
| Transmittance over operating band or photon-energy range | % | FTIR or UV–Vis spectrophotometry |
| Optical scatter and haze | % | Integrating-sphere measurement |
| Birefringence | nm/cm | Polarimetry |
| Laser-induced damage threshold | J/cm² | Laser damage test (ISO 21254) |
| Coating adhesion and environmental durability | Tape and humidity test (ISO 9211) | |
| Transmitted wavefront error | fringes | Interferometry |
Integration & packaging
| Parameter | Unit | Typical test method |
|---|---|---|
| Pressure differential and temperature range | bar | Proof-pressure test |
| Seal integrity and chemical compatibility | atm·cc/s | Helium leak test |
| Operating temperature limit | °C | Per application brief |
Where it is used
- Lasers & PhotonicsOptics must transmit light and survive heat load; diamond transmits and conducts heat away.
- Semiconductor EquipmentProcessing demands precision, cleanliness and compatible materials; diamond parts are specified around all three.
- Research & QuantumExperiments need pure material and sensitive measurement; diamond is specified to your conditions.
Requirement to review
Have a material requirement? Let’s review it.
Share your diamond windows requirement, dimensions and drawing for review.