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Products / Optics /Terahertz Optical Components /Terahertz Hollow Retro Reflector /
Terahertz Hollow Retro Reflector
Overview Coating Graph Related Products Order Now!

An essential component of the delay line that returns the laser beam parallel and independently of the precise perpendicularity of the incident angle is the hollow retroreflector (also known as a hollow cone or backward reflector).


Insensitive to vibration, position, and movement, hollow cone mirrors are strong, monolithic structures constructed of solid aluminum that is perfect for use in laser tracking systems, FTIR spectrometers, and Michelson-type interferometers.


Glass glued hollow retroreflectors and metal one-piece hollow retroreflectors are the two main varieties.


•       The ability to integrate mounting features and datums into the retroreflector for easy alignment, 

         providing additional design and cost-effectiveness

•       Return beam with accuracy down to 2 arc seconds

•       Operating temperature: -40 to 60 °C

•       Coating: Gold, silver, aluminum coating (bare metal or with a protective coating)


Hollow Retro Reflector, Mirrors www.simtrum.com


General Specifications

Type

Hollow retro-reflector

Mount Material

Black Anodized Aluminium

Dimensional Tolerance(mm)

±0.2

Deviation Angle(degree)

180

Angle of Incidence(degree)

0

Exiting Wavefront

<λ/3@633nm

Chamfer

<0.5mmx45°


Model Guide


MaterialCoatingProduct CodeClear Aperture (mm)Reflection Accuracy (Arcseconds)

Mounted

Glass Glued

Protected GoldPAU-HRG-25.4-225.42
PAU-HRG-25.4-525.45
PAU-HRG-25.4-1025.410
PAU-HRG-63.5-263.52
PAU-HRG-63.5-563.55
PAU-HRG-63.5-1563.515
Protacted AluminumPAL-HRG-6.35-56.355
PAL-HRG-63.5-263.52
PAL-HRG-63.5-563.55
PAL-HRG-63.5-1563.515

Unmounted

Aluminum One-piece

Protected GoldPAU-HRA-12.712.7<10
PAU-HRA-25.425.4
PAU-HRA-38.138.1
PAU-HRA-50.850.8
Protected SilverPAG-HRA-12.712.7<10
PAG-HRA-25.425.4
PAG-HRA-38.138.1
PAG-HRA-50.850.8
Protacted AluminumPAL-HRA-12.712.7<10
PAL-HRA-25.425.4
PAL-HRA-38.138.1
PAL-HRA-50.850.8



Aluminum Coating Reflectance Curve image.png

Gold Coating Reflectance Curve 

image.png

Silver Coating Reflectance Curve 

image.png





Model
Product

  Terahertz Quantum Cascade Lasers

  780nm Femtosecond Laser for Terahertz


  1560nm Femtosecond Laser for Terahertz

  TPX / HDPE Terahertz Plano Convex Lens

  Size choice : 1 to 2 inch (customizable)

  Focal length: 10mm to 240mm (customizable)

  Material: TPX / HDPE 

  Off-Axis Parabolic Mirrors

  Size choice : 1 to 2 inch (customizable)

  Angle: 90 degree and 15/45/60 degree

  Focal length: 12.7mm to 254mm (customizable)

  Coating: Protected Gold, Protected Silver, Protected AL , UV Enhanced AL

  Through Hole: Yes

  Terahertz Hollow Retro Reflector 

  Size choice : 25.4mm to 63.5mm(customizable)

  Coating: Protected Gold, Protected Silver, Protected AL , UV Enhanced AL


  Terahertz Metallic Mirrors 

  Size choice : 25.4mm to 76.2mm(customizable)

  Thickness: 3 to 6mm(customizable)

  Coating: Protected Gold, Protected Silver, Protected AL , UV Enhanced AL


  Terahertz ZnTe Crystals 

  Size choice : 10mm * 10mm * (0.1 to 2mm) (customizable)

  Terahertz Beam Expander Reflection

  Output diameter: 40mm

  Coating: Protected Gold, Protected Silver, Protected AL , UV Enhanced AL 

  Terahertz Polarizers

  Size choice : 25.4mm and 50.8mm (customizable)


  THz High Resistivity Silicon Beam Splitter

  Size choice : 1 to 3 inch (customizable)

  Thickness 0.5 to 3mm 


  Terahertz Beam Profiler (1-18 THz)




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Reflection Accuracy (arcseconds)

Clear Aperture

Coating


Search Reset
Compare Model Drawings & Specs Coating Clear Aperture Reflection Accuracy (arcseconds) Availability Reference Price
(USD)
PAU-HRG-25.4-2
Hollow Retroreflector, mounted, protected Gold coating, clear aperture 25.4 mm, reflection accuracy 2" 		Protected Gold@2000-12000nm25.4mm2" 2-3 Weeks $492.06
PAU-HRG-25.4-5
Hollow Retroreflector, mounted, protected Gold coating, clear aperture 25.4 mm, reflection accuracy 5" 		Protected Gold@2000-12000nm25.4mm5" 2-3 Weeks $346.94
PAU-HRG-25.4-10
Hollow Retroreflector, mounted, protected Gold coating, clear aperture 25.4 mm, reflection accuracy 10" 		Protected Gold@2000-12000nm25.4mm10" 2-3 Weeks $299.32
PAU-HRG-63.5-2
Hollow Retroreflector, mounted, protected Gold coating, clear aperture 63.5 mm, reflection accuracy 2" 		Protected Gold@2000-12000nm63.5mm2" 2-3 Weeks $1573.70
PAU-HRG-63.5-5
Hollow Retroreflector, mounted, protected gold coating, clear aperture 63.5 mm, reflection accuracy 5" 		Protected Gold@2000-12000nm63.5mm5" 2-3 Weeks $1090.70
PAU-HRG-63.5-15
Hollow Retroreflector, mounted, protected Gold coating, clear aperture 63.5 mm, reflection accuracy 15" 		Protected Gold@2000-12000nm63.5mm15" 2-3 Weeks $770.98
PAL-HRG-6.35-5
Hollow Retroreflector, mounted, protected Aluminum coating, clear aperture 6.35 mm, reflection accuracy 5" 		Protected Aluminum @400-1200nm6.35mm5" 2-3 Weeks $836.73
PAL-HRG-63.5-2
Hollow Retroreflector, mounted, protected Aluminum coating, clear aperture 63.5 mm, reflection accuracy 2" 		Protected Aluminum @400-1200nm63.5mm2" 2-3 Weeks $897.96
PAL-HRG-63.5-5
Hollow Retroreflector, mounted, protected Aluminum coating, clear aperture 63.5 mm, reflection accuracy 5" 		Protected Aluminum @400-1200nm63.5mm5" 2-3 Weeks $707.48
PAL-HRG-63.5-15
Hollow Retroreflector, mounted, protected Aluminum coating, clear aperture 63.5 mm, reflection accuracy 15" 		Protected Aluminum @400-1200nm63.5mm15" 2-3 Weeks $578.23
PAU-HRA-12.7
Hollow Retroreflector, unmounted, protected gold coating, clear aperture 12.7 mm, reflection accuracy <10" 		Protected Gold@2000-12000nm12.7mm<10" 2-3 Weeks $333.33
PAU-HRA-25.4
Hollow Retroreflector, unmounted, protected gold coating, clear aperture 25.4 mm, reflection accuracy <10" 		Protected Gold@2000-12000nm25.4mm<10" 2-3 Weeks $419.50
PAU-HRA-38.1
Hollow Retroreflector, unmounted, protected gold coating, clear aperture 38.1 mm, reflection accuracy <10" 		Protected Gold@2000-12000nm38.1mm<10" 2-3 Weeks $904.76
PAU-HRA-50.8
Hollow Retroreflector, unmounted, protected Gold coating, clear aperture 50.8 mm, reflection accuracy <10" 		Protected Gold@2000-12000nm50.8mm<10" 2-3 Weeks $1129.25
PAG-HRA-12.7
Hollow Retro-reflector, unmounted, protected Silver coating, clear aperture 12.7 mm, reflection accuracy <10" 		Protected Silver@400-12000nm12.7mm<10" Contact Us $315.19
PAG-HRA-25.4
Hollow Retro-reflector, unmounted, protected Silver coating, clear aperture 25.4 mm, reflection accuracy <10" 		Protected Silver@400-12000nm25.4mm<10" 2-3 Weeks $396.83
PAG-HRA-38.1
Hollow Retro-reflector, unmounted, protected Silver coating, clear aperture 38.1 mm, reflection accuracy <10" 		Protected Silver@400-12000nm38.1mm<10" 2-3 Weeks $866.21
PAG-HRA-50.8
Hollow Retro-reflector, unmounted, protected Silver coating, clear aperture 50.8 mm, reflection accuracy <10" 		Protected Silver@400-12000nm50.8mm<10" 2-3 Weeks $1081.63
PAL-HRA-12.7
Hollow Retroreflector, unmounted, protected Aluminum coating, clear aperture 12.7 mm, reflection accuracy <10" 		Protected Aluminum @400-1200nm12.7mm<10" 2-3 Weeks $312.93
PAL-HRA-25.4
Hollow Retroreflector, unmounted, protected Aluminum coating, clear aperture 25.4 mm, reflection accuracy <10" 		Protected Aluminum @400-1200nm25.4mm<10" 2-3 Weeks $394.56
PAL-HRA-38.1
Hollow Retroreflector, unmounted, protected Aluminum coating, clear aperture 38.1 mm, reflection accuracy <10" 		Protected Aluminum @400-1200nm38.1mm<10" 2-3 Weeks $863.95
PAL-HRA-50.8
Hollow Retroreflector, unmounted, protected Aluminum coating, clear aperture 50.8 mm, reflection accuracy <10" 		Protected Aluminum @400-1200nm50.8mm<10" 2-3 Weeks $1077.10

PAL-HRA-50.8 - Parameter

Coating
Protected Aluminum @400-1200nm

Clear Aperture
50.8mm

Reflection Accuracy (arcseconds)
<10"

PAL-HRA-38.1 - Parameter

Coating
Protected Aluminum @400-1200nm

Clear Aperture
38.1mm

Reflection Accuracy (arcseconds)
<10"

PAL-HRA-25.4 - Parameter

Coating
Protected Aluminum @400-1200nm

Clear Aperture
25.4mm

Reflection Accuracy (arcseconds)
<10"

PAL-HRA-12.7 - Parameter

Coating
Protected Aluminum @400-1200nm

Clear Aperture
12.7mm

Reflection Accuracy (arcseconds)
<10"

PAG-HRA-50.8 - Parameter

Coating
Protected Silver@400-12000nm

Clear Aperture
50.8mm

Reflection Accuracy (arcseconds)
<10"

PAG-HRA-38.1 - Parameter

Coating
Protected Silver@400-12000nm

Clear Aperture
38.1mm

Reflection Accuracy (arcseconds)
<10"

PAG-HRA-25.4 - Parameter

Coating
Protected Silver@400-12000nm

Clear Aperture
25.4mm

Reflection Accuracy (arcseconds)
<10"

PAG-HRA-12.7 - Parameter

Coating
Protected Silver@400-12000nm

Clear Aperture
12.7mm

Reflection Accuracy (arcseconds)
<10"

PAU-HRA-50.8 - Parameter

Coating
Protected Gold@2000-12000nm

Clear Aperture
50.8mm

Reflection Accuracy (arcseconds)
<10"

PAU-HRA-38.1 - Parameter

Coating
Protected Gold@2000-12000nm

Clear Aperture
38.1mm

Reflection Accuracy (arcseconds)
<10"

PAU-HRA-25.4 - Parameter

Coating
Protected Gold@2000-12000nm

Clear Aperture
25.4mm

Reflection Accuracy (arcseconds)
<10"

PAU-HRA-12.7 - Parameter

Coating
Protected Gold@2000-12000nm

Clear Aperture
12.7mm

Reflection Accuracy (arcseconds)
<10"

PAL-HRG-63.5-15 - Parameter

Coating
Protected Aluminum @400-1200nm

Clear Aperture
63.5mm

Reflection Accuracy (arcseconds)
15"

PAL-HRG-63.5-5 - Parameter

Coating
Protected Aluminum @400-1200nm

Clear Aperture
63.5mm

Reflection Accuracy (arcseconds)
5"

PAL-HRG-63.5-2 - Parameter

Coating
Protected Aluminum @400-1200nm

Clear Aperture
63.5mm

Reflection Accuracy (arcseconds)
2"

PAL-HRG-6.35-5 - Parameter

Coating
Protected Aluminum @400-1200nm

Clear Aperture
6.35mm

Reflection Accuracy (arcseconds)
5"

PAU-HRG-63.5-15 - Parameter

Coating
Protected Gold@2000-12000nm

Clear Aperture
63.5mm

Reflection Accuracy (arcseconds)
15"

PAU-HRG-63.5-5 - Parameter

Coating
Protected Gold@2000-12000nm

Clear Aperture
63.5mm

Reflection Accuracy (arcseconds)
5"

PAU-HRG-63.5-2 - Parameter

Coating
Protected Gold@2000-12000nm

Clear Aperture
63.5mm

Reflection Accuracy (arcseconds)
2"

PAU-HRG-25.4-10 - Parameter

Coating
Protected Gold@2000-12000nm

Clear Aperture
25.4mm

Reflection Accuracy (arcseconds)
10"

PAU-HRG-25.4-5 - Parameter

Coating
Protected Gold@2000-12000nm

Clear Aperture
25.4mm

Reflection Accuracy (arcseconds)
5"

PAU-HRG-25.4-2 - Parameter

Coating
Protected Gold@2000-12000nm

Clear Aperture
25.4mm

Reflection Accuracy (arcseconds)
2"

PAL-HRA-50.8 - Download

PAL-HRA-38.1 - Download

PAL-HRA-25.4 - Download

PAL-HRA-12.7 - Download

PAG-HRA-50.8 - Download

PAG-HRA-38.1 - Download

PAG-HRA-25.4 - Download

PAG-HRA-12.7 - Download

PAU-HRA-50.8 - Download

PAU-HRA-38.1 - Download

PAU-HRA-25.4 - Download

PAU-HRA-12.7 - Download

PAL-HRG-63.5-15 - Download

PAL-HRG-63.5-5 - Download

PAL-HRG-63.5-2 - Download

PAL-HRG-6.35-5 - Download

PAU-HRG-63.5-15 - Download

PAU-HRG-63.5-5 - Download

PAU-HRG-63.5-2 - Download

PAU-HRG-25.4-10 - Download

PAU-HRG-25.4-5 - Download

PAU-HRG-25.4-2 - Download

Accessories

Compare Model Drawings & Specs Availability Reference Price
(USD)

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