Infrared Interferometers

At-wavelength metrology for demanding IR imaging applications

Verifire Interferometer, Infrared WavelenghtsOptical imaging applications are broad and varied. Testing at a system's design wavelength is critical for development, final alignment and qualification.

Night vision, IR, and thermal imaging systems for aerospace and defense, lithography subsystems, remote sensing telescopes, and exotic material qualification represent broadly-varying wavelength requirements, and all benefit from testing at design wavelength with an infrared interferometer system.

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  • TECH PAPERS
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ZYGO, long recognized as the world leader in interferometric testing instruments, has designed and built many specially-equipped interferometer systems, including NIR, SWIR, MWIR and LWIR wavelengths.  ZYGO also designs and manufactures an array of reference optics (transmission spheres and transmission flats) for these wavelengths.

Key Features

  • Wide range of operating wavelengths:
    • NIR:  1.053 µm & 1.064 µm
    • SWIR:  1.55 µm
    • MWIR:  3.39 µm
    • LWIR  10.6 µm
  • At-wavelength QFAS alignment view eases setup of infrared test systems and components.
  • QPSI™ acquisition technology, available only from ZYGO, enables reliable measurements in vibration-prone environments – available with NIR, SWIR and MWIR models.
  • Optional DynaPhase™ instantaneous data acquisition for vibration insensitive metrology in the most difficult environments.
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Laser Interferometers
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Verifire™ MST IR
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Verifire™ IR 339
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Verifire™ IR 106
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Laser Interferometer Accessory Guide
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Interactive Transmission Sphere Selector
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Interferogram Interpretation and Evaluation Guide
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Horizontal Radius Metrology Specs
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Transmission Sphere Selection Guide
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Typical Interferometer Setups Guide
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Transmission Spheres Specs
Title
Document
Download Link
Laser Interferometers
DocumentBrochure
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Verifire™ MST IR
DocumentSpecifications
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Verifire™ IR 339
DocumentSpecifications
Download Link Download
Verifire™ IR 106
DocumentSpecifications
Download Link Download
Laser Interferometer Accessory Guide
DocumentBrochure
Download Link Download
Interactive Transmission Sphere Selector
DocumentInteractive Document
Download Link Download
Interferogram Interpretation and Evaluation Guide
DocumentReference Guide
Download Link Download
Horizontal Radius Metrology Specs
DocumentSpecifications
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Transmission Sphere Selection Guide
DocumentBrochure
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Typical Interferometer Setups Guide
DocumentBrochure
Download Link Download
Transmission Spheres Specs
DocumentSpecifications
Download Link Download
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Metrology in Production Environments - QPSI Technology
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Measurement of Aspheric Surfaces
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Determining Asphere Measurability
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Grazing Incidence Testing
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Interferogram Scale Factor
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Silver Overcoat Spray
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Testing Cylindrical Surfaces with Computer Generated Holograms
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Fringe Analysis versus Phase Measuring Interferometry
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Finite Conjugate Lens Testing
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Testing Cylindrical Optics
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MetroPro® Cylinder Tools
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Pentaprism Testing
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Subtraction of Transmission Sphere Reference Data
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Critical Alignment of Transmission Flats
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Critical Alignment of Transmission Spheres
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Using Static Fringe Data in PHom.app
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Back Surface Suppression in Spherical Cavities
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Imaging at the Cats-Eye Position in the Two-Sphere Test
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Critical Alignment of Aperture Converters
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PV versus RMS
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RMS Multipliers for Seidel Coefficients
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PVr - A Robust Amplitude Parameter
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Ultrasphere™ and Ultraflat™ Zernike Correction
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Using the Auto Focus Feature with Non-ZYGO Transmission Spheres
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Understanding the PV Specification
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Certifiable Full Area Calibration of Plano Reference Optics
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DynaPhase™ Set-Up Guide
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Coherent Artifact Reduction System (CARS)
Title
Document
Download Link
Metrology in Production Environments - QPSI Technology
DocumentAB-0102
Download Link Download
Measurement of Aspheric Surfaces
DocumentAN-0007
Download Link Download
Determining Asphere Measurability
DocumentAN-0008
Download Link Download
Grazing Incidence Testing
DocumentAN-0010
Download Link Download
Interferogram Scale Factor
DocumentAN-0015
Download Link Download
Silver Overcoat Spray
DocumentAN-0016
Download Link Download
Testing Cylindrical Surfaces with Computer Generated Holograms
DocumentAN-0017
Download Link Download
Fringe Analysis versus Phase Measuring Interferometry
DocumentAN-0018
Download Link Download
Finite Conjugate Lens Testing
DocumentAN-0019
Download Link Download
Testing Cylindrical Optics
DocumentAN-0020
Download Link Download
MetroPro® Cylinder Tools
DocumentAN-0021
Download Link Download
Pentaprism Testing
DocumentAN-0022
Download Link Download
Subtraction of Transmission Sphere Reference Data
DocumentAN-0023
Download Link Download
Critical Alignment of Transmission Flats
DocumentAN-0024
Download Link Download
Critical Alignment of Transmission Spheres
DocumentAN-0025
Download Link Download
Using Static Fringe Data in PHom.app
DocumentAN-0026
Download Link Download
Back Surface Suppression in Spherical Cavities
DocumentAN-0027
Download Link Download
Imaging at the Cats-Eye Position in the Two-Sphere Test
DocumentAN-0028
Download Link Download
Critical Alignment of Aperture Converters
DocumentAN-0029
Download Link Download
PV versus RMS
DocumentAN-0030
Download Link Download
RMS Multipliers for Seidel Coefficients
DocumentAN-0031
Download Link Download
PVr - A Robust Amplitude Parameter
DocumentAN-0037
Download Link Download
Ultrasphere™ and Ultraflat™ Zernike Correction
DocumentAN-0038
Download Link Download
Using the Auto Focus Feature with Non-ZYGO Transmission Spheres
DocumentAN-0039
Download Link Download
Understanding the PV Specification
DocumentAN-0040
Download Link Download
Certifiable Full Area Calibration of Plano Reference Optics
DocumentAN-0051
Download Link Download
DynaPhase™ Set-Up Guide
DocumentAN-0061
Download Link Download
Coherent Artifact Reduction System (CARS)
DocumentAN-0065
Download Link Download
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Verifire IR 1.06 µm
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Verifire IR 3.39 µm
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Verifire™ MST 1550 nm
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Aligning a DynaFlect Transmission Flat
Title
Document
Download Link
Verifire IR 1.06 µm
DocumentOMP-0627A
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Verifire IR 3.39 µm
DocumentOMP-0629A
Download Link Download
Verifire™ MST 1550 nm
DocumentOMP-0481A
Download Link Download
Aligning a DynaFlect Transmission Flat
DocumentOMP-0454A
Download Link Download
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Solutions for environmentally robust interferometric optical testing
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101 Frame Algorithm For Phase Shifting Interferometry
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A next-generation optical surface form inspection instrument for high-volume production applications
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A review of selected topics in interferometric optical metrology
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Absolute distance measurements using FTPSI with a widely tunable IR laser
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Absolute Interferometric Testing of Spherical Surfaces
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Absolute Measurement of Rotationally Symmetrical Aspheric Surfaces
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Adjustable coherence depth in a geometrically-desensitized interferometer
Title
Document
Download Link
Solutions for environmentally robust interferometric optical testing
DocumentTechnical Paper
Download Link Download
101 Frame Algorithm For Phase Shifting Interferometry
DocumentTechnical Paper
Download Link Download
A next-generation optical surface form inspection instrument for high-volume production applications
DocumentTechnical Paper
Download Link Download
A review of selected topics in interferometric optical metrology
DocumentTechnical Paper
Download Link Download
Absolute distance measurements using FTPSI with a widely tunable IR laser
DocumentTechnical Paper
Download Link Download
Absolute Interferometric Testing of Spherical Surfaces
DocumentTechnical Paper
Download Link Download
Absolute Measurement of Rotationally Symmetrical Aspheric Surfaces
DocumentTechnical Paper
Download Link Download
Adjustable coherence depth in a geometrically-desensitized interferometer
DocumentTechnical Paper
Download Link Download
Advances in optical metrology
DocumentTechnical Paper
Download Link Download
Applications of optical coherence in interferometric metrology
DocumentTechnical Paper
Download Link Download

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