HR Right Angle Retroreflector

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HR Right Angle Retroreflector

HR right angle retroreflector consists of two HR coated mirrors. 90° angle is as precise as ±5 arcsec.

Clear Aperture, %	>80
90 deg Angle Tolerance, arcmin	±30 arcsec
Dimension Tolerances, mm	+0.0/-0.2
Material	UVFS
Protective chamfers	<0.25 mm x 45 deg
Pyramidal tolerance, arcmin	<1 arcmin
Surface Flatness	<λ/8 @ 632.8 nm
Surface Quality, S-D	20-10

Description

Details

Ultrashort pulse back-reflection task requires group delay management. Due to this reason common retroreflector prism is not applicable as it introduces considerable group delay dispersion which distorts pulse’s temporal shape. Hollow configuration of right angle retroreflector, consists of two HR coated mirrors, featuring total reflectance higher than 99,6 %. Moreover, group delay dispersion (GDD) of HR coatings is optimized to be <20 fs², what makes HR right angle retroreflector a perfect solution for fs applications.

Features

Hollow configuration
Reflectance >99.6 % per surface
Mirrors are deposited on UVFS substrates
Negligible pulse dispersion

Name	AOI, deg	Aperture Dimensions, mm	Design Wavelength, nm	GDD, fs^2	Reflectivity (Ravg, Rs, Rp), %	Price	Quantity
1-HRR-2-4020-[1B145]	45	28x16	340-360	<20	99.7 /99 /99.4	US$215.00
1-HRR-2-4020-[1C145]	45	28x16	380-420	<20	99.5 /98 /99	US$215.00
1-HRR-2-4020-[1E145]	45	28x16	515-532	<20	99.7 /99.3 /99.5	US$215.00
1-HRR-2-4020-[1K145]	45	28x16	760-840	<20	99.7 /99.2 /99.4	US$248.00
1-HRR-2-4020-[1R145]	45	28x16	1020-1090	<20	99.7 /99.3 /99.5	US$314.00
1-HRR-2-4020-[1V145]	45	28x16	1520-1580	<20	99.7 /99.2 /99.4	US$281.00