λ/4 Optical Windows

18 Results
Optical Window, Sapphire, 25.40 mm Diameter, 2.00 mm Thick -- 10SW8-180
from Newport MKS

The 10SW8-180 is a Sapphire Window, 25.40 mm in diameter and 2.00 mm thick. Sapphire windows are ideal for applications where high pressure, vacuum, or corrosive atmospheres are a consideration. The raw material has negligible lattice distortion and is oriented with the optical axis normal to the... [See More]

  • Surface Flatness: λ/4; λ/4 @ 633 nm
  • Thickness: 2
  • Window Diameter, Side Length, or Rectangular Length: 25.4
  • Wedged or Parallel?: Parallel
Monocrystalline MgF2 Lenses
from Changchun Yutai Optics Co., Ltd.

Monocrystalline MgF2 Lenses [See More]

  • Surface Flatness: λ/4
  • Surface Quality: 40-20 Scratch / Dig
  • Coating Material: Specified by customers
AR Laser Windows
from Gurley Precision Instruments

Please contact GPI to request more information regarding customized parts. [See More]

  • Surface Flatness: λ/4
  • Window Diameter, Side Length, or Rectangular Length: 12.5 to 25
  • Window Shape: Circular
  • Thickness: 3
Optical Windows -- BK7 Windows
from CeNing Optics Co., Ltd.

N-BK7 is one of the most common glasses used to produce high-quality optical components, especially for the visible spectrum. It contains very few inclusions and is almost free of bubbles. It is a relatively hard material and has uniform transmission through-out the visible and near infrared spectra... [See More]

  • Surface Flatness: λ/4
  • Window Shape: Circular; Square; Rectangular
  • Window Type: Plane
  • Window Diameter, Side Length, or Rectangular Length: 10 to 50.8
Optical Window, Sapphire, 50.80 mm Diameter, 2.00 mm Thick -- 20SW8-180
from Newport MKS

The 20SW8-180 is a Sapphire Window, 50.80 mm in diameter and 2.00 mm thick. Sapphire windows are ideal for applications where high pressure, vacuum, or corrosive atmospheres are a consideration. The raw material has negligible lattice distortion and is oriented with the optical axis normal to the... [See More]

  • Surface Flatness: λ/4; λ/4 @ 633 nm
  • Thickness: 2
  • Window Diameter, Side Length, or Rectangular Length: 50.8
  • Wedged or Parallel?: Parallel
Sapphire Optical Window, 12.70 mm Diameter, 2.00 mm Thick -- 05SW8-180
from Newport MKS

The 05SW8-180 is a Sapphire Window, 12.70 mm in diameter and 2.00 mm thick. Sapphire windows are ideal for applications where high pressure, vacuum, or corrosive atmospheres are a consideration. The raw material has negligible lattice distortion and is oriented with the optical axis normal to the... [See More]

  • Surface Flatness: λ/4; λ/4 @ 633 nm
  • Thickness: 2
  • Window Diameter, Side Length, or Rectangular Length: 12.7
  • Wedged or Parallel?: Parallel
Dia 12.7mm, Thk 2.0mm, Uncoated, C-cut, Flatness λ/4, SQ 40/20 S/D Sapphire Window -- 153-017
from Hangzhou Shalom Electro-optics Technology Co., Ltd.

Features: • Exceptional mechanical strength and chemical resistance. • High thermal durabilities and broad wavelength range from 200-5500nm. • Ideal for harsh conditions and high-power applications (e.g lasers, plasma chambers, pharmaceuticals, etc.). • A large selection of... [See More]

  • Surface Flatness: λ/4
  • Window Diameter, Side Length, or Rectangular Length: 12.7
  • Window Shape: Circular
  • Thickness: 2
Optical Windows
from Fairfield Crystal Technology, LLC.

OPTICAL COMPONENT MANUFACTURING. Fairfield Crystal provides component manufacturing for your most challenging designs and applications. Combined with our expertise in crystal growth our component fabrication team is able to manufacture highly polished single crystal lenses, prisms, wedges,... [See More]

  • Surface Flatness: λ/2; λ/4; λ/5; λ/8; λ/10; λ/20
  • Surface Quality: 10-5 Scratch / Dig; 20-10 Scratch / Dig; 40-20 Scratch / Dig; 60-40 Scratch / Dig; 80-50 Scratch / Dig
  • Window Material: Calcium Fluoride; Zinc Selenide
Flat Windows
from Thorlabs, Inc.

At Thorlabs, we constantly reinforce our desire to serve at the pleasure of our customers. From this comes our desire to be connected to our industry in a way that far exceeds what would typically be expected of a vendor. Thorlabs lives this core principle by seeking to enhance, at every turn, the... [See More]

  • Surface Flatness: λ/2; λ/4; λ/8; λ/10; λ/20; ?
  • Window Shape: Circular; Rectangular
  • Window Type: Plane
  • Window Diameter, Side Length, or Rectangular Length: 12.7 to 50.8
IR Windows Calcium Fluoride CaF2 Windows
from HG Optronics, Inc.

Calcium Fluoride windows and lenses for UV and IR spectrum. Custom made CaF2 windows, CaF2 lenses and wedges according to customer's specifications. CaF2 windows up to 220mm diameter; CaF2 wedges, prisms and CaF2 mirrors; Excimer CaF2 optics, Raman grade CaF2 optics and etc. 5.1. What ’s... [See More]

  • Surface Flatness: λ/4; λ/4 per 25mm
  • Window Diameter, Side Length, or Rectangular Length: 220
  • Window Shape: Circular (optional feature)
  • Wedged or Parallel?: Parallel
CaF2 Window
from Foctek Photonics, Inc.

Besides standard windows, Foctek offers all kinds of custom-made windows according to customers ’ requirement: Windows made from materials such as N-BK7, Fused Silica, Sapphire, CaF2, Silicon, Borofloat, Pyrex, or other optical glass supplied by Schott and Chinese CDGM are available upon... [See More]

  • Surface Flatness: λ/4; Lambda
  • Window Diameter, Side Length, or Rectangular Length: 8 to 30
  • Window Shape: Circular
  • Thickness: 1 to 4
1/4-Wave N-BK7 Window 10mm Dia. MgF2 Coating -- NT45-256
from Edmund Optics Inc.

1/4 λ Surface Accuracy. Broadband Anti-Reflection Coating Options Available. Custom Coatings and Sizes Available for Volume OEM Quantities. Also Available with Laser-Line V-Coats. TECHSPEC ® 1/4 λ N-BK7 Precision Windows are ideally suited for industrial and low power laser... [See More]

  • Surface Flatness: λ/4
  • Window Shape: Circular
  • Window Type: Plane
  • Window Diameter, Side Length, or Rectangular Length: 10
Precision Round Windows
from EKSMA OPTICS

The windows are designed to be used in precision optical systems. The optical transmission is high with little distortion of transmitted signal. λ/10 transmitted wavefront distorsion is usually preferred but λ/4 is offered as an option when this is not an issue. Windows can be... [See More]

  • Surface Flatness: λ/4; λ/10
  • Window Diameter, Side Length, or Rectangular Length: 12.5 to 75
  • Window Shape: Circular
  • Thickness: 3 to 15
BK7 or equivalent Window 10mmdia x 3mthk AR coated (1050-1700nm) -- WQK1002-AI2
from Knight Optical (UK) Ltd

These precision grade BK7 or equivalent windows are used to seal optical enclosures especially suited to low power laser applications. Our stock range of ¼ wave BK7 or equivalent windows are uncoated and also AR coated both faces with extended BBAR for visible and NIR applications (450-900nm)... [See More]

  • Surface Flatness: λ/4
  • Window Diameter, Side Length, or Rectangular Length: 0.2000
  • Window Shape: Circular
  • Rectangular Width: 0.1000
Parallel Windows
from Rocky Mountain Instrument/RMI Laser

Parallel Windows are similar to Plane Windows, but with parallel surfaces. These windows are well suited for applications in which angular deviation of the transmitted beam must be kept as small as possible. Misalignment errors are also minimized when the window is repeatedly inserted and removed. [See More]

  • Surface Flatness: λ/4; λ/20; Lambda/40
  • Wedged or Parallel?: Wedged
  • Window Shape: Circular
  • Parallelism or Wedge Angle: 5
Magnesium Fluoride (MgF2) Windows
from HG Optronics, Inc.

Magnesium Fluoride Windows applicable for wide range spectrum, transmits well into the VUV region at the hydrogen Lyman-alpha line and beyond and it is particularly useful for Excimer laser application.It is resistant to mechanical and thermal shock, to radiation, and is chemically stable. Magnesium... [See More]

  • Surface Flatness: λ/4; λ/4 per 25mm
  • Thickness: 1 to 80
  • Window Shape: Circular (optional feature); Square (optional feature); Rectangular (optional feature)
  • Wedged or Parallel?: Parallel
Silicon Window
from Foctek Photonics, Inc.

Besides standard windows, Foctek offers all kinds of custom-made windows according to customers ’ requirement: Windows made from materials such as N-BK7, Fused Silica, Sapphire, CaF2, Silicon, Borofloat, Pyrex, or other optical glass supplied by Schott and Chinese CDGM are available upon... [See More]

  • Surface Flatness: λ/4; Lambda
  • Window Diameter, Side Length, or Rectangular Length: 8 to 30
  • Window Shape: Circular
  • Thickness: 1 to 20
Plane Windows
from Rocky Mountain Instrument/RMI Laser

Plane Windows are used as substrates for a variety of applications, such as laser windows, output couplers, beamsplitters, beam combiners, mirrors, dichroic filters and plate polarizers. Considerations in selecting window substrates include transmission range, absorption coefficient, incident laser... [See More]

  • Surface Flatness: λ/4; λ/20; Lambda/40
  • Window Shape: Circular
  • Window Type: Plane
  • Wedged or Parallel?: Wedged