Wavelength range
190-3000 nm
Dimensions L x H
10×10 – 100×100 mm
Surface quality, S-D
20-10; 40-20*
Surface flatness, P-V
<λ/10 @ 632.8 nm*
Right angle tolerance
±30 arcsec
Reflectance
>99.8%
LIDT
>20 J/cm² @ 1064 nm, 10 ns, 10 Hz
*depending on material and size
The main application for HR right-angle retroreflectors (RR) is for ultrashort pulse back-reflection. Prisms or corner cube retroreflectors introduce considerable group delay dispersion, while HR right-angle retroreflectors have controlled GDD coatings. Such retroreflectors are popular among laser source manufacturers.
Dielectric and metallic coatings can be applied on flat mirrors glued into HR right-angle retroreflectors. A custom design provides the opportunity to create such products as low-loss retroreflectors, broadband low-GDD retroreflectors, wide-acceptance-angle retroreflectors, and even retroreflectors that work as wavelength separators.
Over more than 20 years, Altechna has gathered experience in manufacturing custom retroreflectors. All the main coating technologies, including e-beam + IAD, IBS and magnetron sputtering, can be applied in the RR manufacturing process.
The assembly process of HR right-angle retroreflectors allows controlling the right angle during the gluing procedure. The standard right-angle accuracy is <30 arcsec, and <10 arcsec can be achieved upon request.
Another application for retroreflectors was demonstrated in 1962, during the Lunar Laser Ranging experiment. Researchers succeeded in observing laser pulses reflected from a retroreflector array left on the surface of the Moon by those involved in the Apollo 11 mission.
Feel free to reach out to us with a custom-designed retroreflector for your laser system or any inquiries you may have at: [email protected]. We’re here to assist you!
Thank You for filling out your personal information. For easier communication between you and us, it would be better if you could also fill the product specifications.
Go back to the homepage