substrate-free grid optics
for the infrared

• Infrared Step Attenuators
  Fixed steps of broadband infrared attenuation allow precision power setting of a laser beam. Application fields are beam quality control, nonlinear studies, detector calibration, and heterodyne systems.
  
  
• NEW: IR-VIS Neutral-Density Attenuators
  In the new compact Model 801, four switchable, phase-maintaining neutral-density filters, flat from 500 nm to 15 µm, attenuate 0.5, 1, 2, or 3 OD up to 100 W. They are ideal for precise beam-quality and level control in ultra-broadband and nonlinear IR-VIS applications.
  
  
• Linear Polarizers
  The infrared polarizer filter allows low-loss, extremely-high-contrast analysis and control of a laser beam polarization. Applications are in polarimetry and ellipsometry.
  
  
• Polarization Sensors
  A field-portable combination of a rotating polarizer and a fast power sensor allows a quick assessment of ellipticity and orientation of an infrared beam's polarization. Applications are in beam quality control, polarimetry, ellipsometry, and especially in circularity control of CO₂ laser cutting machines.
  
  
• Power Sensors
  Record fast power sensing of infrared beams up to 50 W, useful for laboratory and OEM monitoring, or for fast feedback stabilization.
  
  
• Compact Infrared Spectrometers
  A permanently aligned, lamellar-mirror FT spectrometer of minimal footprint, for monitoring infrared beam spectra over a record broad spectral region 1 - 70 µm, with reduced response even including the VIS and THz regions.