Broadband Hollow Retroreflectors

Compare	Model	Compatibility	rankScore	Aperture	Parallelism	Wavelength Range	Coating Type	Availability	Price	Brand
UBBR1-1 Hollow Retroreflector, Broadband, 1.0 in, 1 arc sec, 400-700 nm $1,464 In Stock	UBBR1-1 Hollow Retroreflector, Broadband, 1.0 in, 1 arc sec, 400-700 nm	UNIVERSAL	1.0	25.4 mm	1 arc sec	400-700 nm	Protected Aluminum	In Stock	$1,464	Newport
UBBR1-1I Hollow Retroreflector, Broadband, 1.0 in, 1 arc sec, 650-16,000 nm $1,464 In Stock	UBBR1-1I Hollow Retroreflector, Broadband, 1.0 in, 1 arc sec, 650-16,000 nm	UNIVERSAL	1.0	25.4 mm	1 arc sec	650-16,000 nm	Protected Gold	In Stock	$1,464	Newport
UBBR1-1S Hollow Retroreflector, Broadband, 1.0 in, 1 arc sec, 450-10,000 nm $1,524 In Stock	UBBR1-1S Hollow Retroreflector, Broadband, 1.0 in, 1 arc sec, 450-10,000 nm	UNIVERSAL	1.0	25.4 mm	1 arc sec	450-10,000 nm	Protected Silver	In Stock	$1,524	Newport
UBBR1-1UV Hollow Retroreflector, Broadband, 1.0 in, 1 arc sec, 225-700 nm $1,524 In Stock	UBBR1-1UV Hollow Retroreflector, Broadband, 1.0 in, 1 arc sec, 225-700 nm	UNIVERSAL	1.0	25.4 mm	1 arc sec	225-700 nm	UV Enhanced Aluminum	In Stock	$1,524	Newport
UBBR1-2 Hollow Retroreflector, Broadband, 1.0 in, 2 arc sec, 400-700 nm $1,150 In Stock	UBBR1-2 Hollow Retroreflector, Broadband, 1.0 in, 2 arc sec, 400-700 nm	UNIVERSAL	1.0	25.4 mm	2 arc sec	400-700 nm	Protected Aluminum	In Stock	$1,150	Newport
UBBR1-2I Hollow Retroreflector, Broadband, 1.0 in, 2 arc sec, 650-16,000 nm $1,150 In Stock	UBBR1-2I Hollow Retroreflector, Broadband, 1.0 in, 2 arc sec, 650-16,000 nm	UNIVERSAL	1.0	25.4 mm	2 arc sec	650-16,000 nm	Protected Gold	In Stock	$1,150	Newport
UBBR1-2S Hollow Retroreflector, Broadband, 1.0 in, 2 arc sec, 450-10,000 nm $1,197 In Stock	UBBR1-2S Hollow Retroreflector, Broadband, 1.0 in, 2 arc sec, 450-10,000 nm	UNIVERSAL	1.0	25.4 mm	2 arc sec	450-10,000 nm	Protected Silver	In Stock	$1,197	Newport
UBBR1-2UV Hollow Retroreflector, Broadband, 1.0 in, 2 arc sec, 225-700 nm $1,197 In Stock	UBBR1-2UV Hollow Retroreflector, Broadband, 1.0 in, 2 arc sec, 225-700 nm	UNIVERSAL	1.0	25.4 mm	2 arc sec	225-700 nm	UV Enhanced Aluminum	In Stock	$1,197	Newport
UBBR1-5 Hollow Retroreflector, Broadband, 1.0 in, 5 arc sec, 400-700 nm $845 In Stock	UBBR1-5 Hollow Retroreflector, Broadband, 1.0 in, 5 arc sec, 400-700 nm	UNIVERSAL	1.0	25.4 mm	5 arc sec	400-700 nm	Protected Aluminum	In Stock	$845	Newport
UBBR1-5I Hollow Retroreflector, Broadband, 1.0 in, 5 arc sec, 650-16,000 nm $845 In Stock	UBBR1-5I Hollow Retroreflector, Broadband, 1.0 in, 5 arc sec, 650-16,000 nm	UNIVERSAL	1.0	25.4 mm	5 arc sec	650-16,000 nm	Protected Gold	In Stock	$845	Newport
UBBR1-5S Hollow Retroreflector, Broadband, 1.0 in, 5 arc sec, 450-10,000 nm $845 In Stock	UBBR1-5S Hollow Retroreflector, Broadband, 1.0 in, 5 arc sec, 450-10,000 nm	UNIVERSAL	1.0	25.4 mm	5 arc sec	450-10,000 nm	Protected Silver	In Stock	$845	Newport
UBBR1-5UV Hollow Retroreflector, Broadband, 1.0 in, 5 arc sec, 225-700 nm $845 In Stock	UBBR1-5UV Hollow Retroreflector, Broadband, 1.0 in, 5 arc sec, 225-700 nm	UNIVERSAL	1.0	25.4 mm	5 arc sec	225-700 nm	UV Enhanced Aluminum	In Stock	$845	Newport
UBBR2.5-1 Hollow Retroreflector, Broadband, 63.5 mm, 1 arc sec, 400-700 nm $1,882 In Stock	UBBR2.5-1 Hollow Retroreflector, Broadband, 63.5 mm, 1 arc sec, 400-700 nm	UNIVERSAL	1.0	63.5 mm	1 arc sec	400-700 nm	Protected Aluminum	In Stock	$1,882	Newport
UBBR2.5-1I Hollow Retroreflector, Broadband, 63.5 mm, 1 arc sec, 650-16,000 nm $1,882 In Stock	UBBR2.5-1I Hollow Retroreflector, Broadband, 63.5 mm, 1 arc sec, 650-16,000 nm	UNIVERSAL	1.0	63.5 mm	1 arc sec	650-16,000 nm	Protected Gold	In Stock	$1,882	Newport
UBBR2.5-1S Hollow Retroreflector, Broadband, 63.5 mm, 1 arc sec, 450-10,000 nm $1,987 In Stock	UBBR2.5-1S Hollow Retroreflector, Broadband, 63.5 mm, 1 arc sec, 450-10,000 nm	UNIVERSAL	1.0	63.5 mm	1 arc sec	450-10,000 nm	Protected Silver	In Stock	$1,987	Newport
UBBR2.5-1UV Hollow Retroreflector, Broadband, 63.5 mm, 1 arc sec, 225-700 nm $1,987 In Stock	UBBR2.5-1UV Hollow Retroreflector, Broadband, 63.5 mm, 1 arc sec, 225-700 nm	UNIVERSAL	1.0	63.5 mm	1 arc sec	225-700 nm	UV Enhanced Aluminum	In Stock	$1,987	Newport
UBBR2.5-2 Hollow Retroreflector, Broadband, 63.5 mm, 2 arc sec, 400-700 nm $1,539 In Stock	UBBR2.5-2 Hollow Retroreflector, Broadband, 63.5 mm, 2 arc sec, 400-700 nm	UNIVERSAL	1.0	63.5 mm	2 arc sec	400-700 nm	Protected Aluminum	In Stock	$1,539	Newport
UBBR2.5-2I Hollow Retroreflector, Broadband, 63.5 mm, 2 arc sec, 650-16,000 nm $1,539 In Stock	UBBR2.5-2I Hollow Retroreflector, Broadband, 63.5 mm, 2 arc sec, 650-16,000 nm	UNIVERSAL	1.0	63.5 mm	2 arc sec	650-16,000 nm	Protected Gold	In Stock	$1,539	Newport
UBBR2.5-2S Hollow Retroreflector, Broadband, 63.5 mm, 2 arc sec, 450-10,000 nm $1,621 In Stock	UBBR2.5-2S Hollow Retroreflector, Broadband, 63.5 mm, 2 arc sec, 450-10,000 nm	UNIVERSAL	1.0	63.5 mm	2 arc sec	450-10,000 nm	Protected Silver	In Stock	$1,621	Newport
UBBR2.5-2UV Hollow Retroreflector, Broadband, 63.5 mm, 2 arc sec, 225-700 nm $1,621 In Stock	UBBR2.5-2UV Hollow Retroreflector, Broadband, 63.5 mm, 2 arc sec, 225-700 nm	UNIVERSAL	1.0	63.5 mm	2 arc sec	225-700 nm	UV Enhanced Aluminum	In Stock	$1,621	Newport
UBBR2.5-5 Hollow Retroreflector, Broadband, 63.5 mm, 5 arc sec, 400-700 nm $1,306 In Stock	UBBR2.5-5 Hollow Retroreflector, Broadband, 63.5 mm, 5 arc sec, 400-700 nm	UNIVERSAL	1.0	63.5 mm	5 arc sec	400-700 nm	Protected Aluminum	In Stock	$1,306	Newport
UBBR2.5-5I Hollow Retroreflector, Broadband, 63.5 mm, 5 arc sec, 650-16,000 nm $1,306 In Stock	UBBR2.5-5I Hollow Retroreflector, Broadband, 63.5 mm, 5 arc sec, 650-16,000 nm	UNIVERSAL	1.0	63.5 mm	5 arc sec	650-16,000 nm	Protected Gold	In Stock	$1,306	Newport
UBBR2.5-5S Hollow Retroreflector, Broadband, 63.5 mm, 5 arc sec, 450-10,000 nm $1,359 In Stock	UBBR2.5-5S Hollow Retroreflector, Broadband, 63.5 mm, 5 arc sec, 450-10,000 nm	UNIVERSAL	1.0	63.5 mm	5 arc sec	450-10,000 nm	Protected Silver	In Stock	$1,359	Newport
UBBR2.5-5UV Hollow Retroreflector, Broadband, 63.5 mm, 5 arc sec, 225-700 nm $1,359 In Stock	UBBR2.5-5UV Hollow Retroreflector, Broadband, 63.5 mm, 5 arc sec, 225-700 nm	UNIVERSAL	1.0	63.5 mm	5 arc sec	225-700 nm	UV Enhanced Aluminum	In Stock	$1,359	Newport

Features

Alignment-Free 180 Degree Reflection

Retroreflectors, also known as corner cubes as all three mirror surfaces are perpendicular, will reflect all incoming light 180° regardless of incidence angle, resulting in a reflected beam that is precisely parallel to the incident beam. This is achieved without requiring prior alignment (as with a flat mirror). Images reflected by a corner cube are reversed and inverted.

Retroreflector Stability

Our broadband hollow retroreflectors are constructed of three front-surface flat mirrors assembled into a corner cube. A stress-free mounting technique is employed to ensure dimensional stability.

Comparison with Solid Glass Retroreflectors

Hollow retroreflectors offer advantages of more accurate parallelism, ability to accommodate larger beam diameters, and better preservation of polarization compared to solid glass retroreflectors. Our UBBR1-1 hollow retroreflectors provide as low as 1 arc sec return beam accuracy, compared to 2 arc sec provided by our BGR solid glass retroreflectors. The UBBR2.5 hollow retroreflectors' 2.5-in. (63.5-mm) aperture is larger than typical solid glass retroreflectors' diameters. Polarized light traveling through solid glass can result in unpredictable polarization, whereas reflected light from a metallic coating traveling through air in a hollow retroreflector tends to have its polarization preserved better. Finally, for psec and fsec ultrashort pulses, hollow retroreflectors introduce much lower dispersive effects compared to solid glass.

UV Enhanced Aluminum Coating - 225 to 700 nm

Protected Aluminum Coating - 400 to 700 nm

Protected Silver Coating - 450 to 10,000 nm

Protected Gold Coating - 650 to 16,000 nm

Ideal for Optical Delay Lines

One of the most critical factors in achieving reliable delays in an optical delay line is parallelism between (1) the beam traveling to the retroreflecting optics and (2) the beam on its return path. UBBR Series hollow retroreflectors provide 1, 2, and 5 arc second return beam parallelism with no adjustment necessary. UBBR2.5-5 Series hollow retroreflectors, with 2.5 in. (63.5 mm) aperture and 5 arc second parallelism, are key elements in Newport's Optical Delay Line Component Kits that enable faster and easier construction of single, dual, or quadruple pass set ups. These delay line kits are a useful tool for many ultrashort pulse applications.