G&H’s precision optics group encompasses five operations, located in the UK and the US. Each operation is focused on expanding and developing its unique capabilities:
- Nonlinear optical crystal growth
- Superpolishing
- Single-point diamond turning
- Crystal quartz waveplate production
- Anti-reflection, high reflection, and high laser damage threshold coatings
- Adhesive-free bonding
Across our facilities, we have experience and qualifications to serve our customers in defense, metrology, and medical sectors:
- Export regulation compliant
- ITAR compliant
- ISO 9001 registered
- AS 9100 registered
Non-linear optical crystal growth
Beginning with the raw chemicals we grow, orient, fabricate, finish, coat, and mount: beta-barium borate (BBO), cadmium sulfide (CdS), cadmium selenide (CdSe), potassium di-hydrogen Phosphate (KDP), potassium di-deuterium phosphate (KD*P), lithium niobate (LnNbO3— often referred to as LN), and tellurium dioxide (TeO2).
Superpolishing
G&H has supplied superpolished optics to NASA’s Mars Curiosity mission and to international synchrotron experiments. Superpolished materials include N-BK7 optical glass, calcium fluoride, crystal quartz, fused silica, Nd:YAG, sapphire, silicon carbide, YAG and ZERODUR®.
Coatings
G&H has four factories with thin film optical coating chambers, two based in the USA and two in the UK, offering coating based on the following coating technologies and coating types:
| Technology | Coating |
| Thermal evaporation | Anti-reflection (AR) V-coats, double-V coats & broadband?AR |
| Electron beam gun evaporation (E-Beam) | High-reflection (HR) |
| Ion assisted E-beam deposition (IAD) | Metallic & Dielectric Mirrors |
| Ion beam sputtering (IBS) | Bandpass filters: shortpass and longpass Beamsplitters: polarizing and non-polarizing |
Adhesive-free Bonding
Our adhesive-free bonding process, Hy-Per Bond™, activates precision optical surfaces prior to joining them, forming permanent bonds between the components that are resistant to humidity and cryogenic temperatures.