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Conductive ITO Coated Window


  • Conductive Window for Electrical Shielding
  • ITO Conductive Coating on One Side and AR Coating on the Other
  • 1" Square

WTSQ11050-C

1" Square

An Arrow Indicates the
Conductive Coating (ITO) Side

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Specifications
Substrate N-BK7a
Surface Quality 20-10 Scratch-Dig
Parallelism  ≤3 arcsec 
Surface Flatness λ/8 @ 632.8 nm
Clear Aperture >90% of Dimension
ITO Sheet Resistance Range 50 - 80 Ω/sq
Dimensions (L x W) 1" x 1"
Length and Width Tolerance +0.00 / -0.10
Glass Thickness 5.0 ± 0.20 mm
AR Coating (1050 nm - 1620 nm)
(One Side)
Ravg < 0.5% at 0° ± 5° AOI
Reflectance of -C Coating
  • Click Link for Detailed Specifications on the Substrate
C-Coated Conductive Window Transmission and Reflectivity
Click to Enlarge

Click to Download Transmission and Reflection Data
The shaded region in the plot represents the specified wavelength range for optimum performance.

Features

  • Broadband AR Coating on One Side for the 1050 - 1620 nm Range
  • Indium Tin Oxide (ITO) Coating on Other Side
  • Resistance Range: 50 - 80 Ω/sq (See Definition Below)
  • N-BK7 Substrate

Thorlabs’ Conductive Window is available with our standard -C (1050 - 1620 nm) broadband antireflection coating deposited on one surface and a conductive Indium Tin Oxide (ITO) coating on the other surface. ITO conductive glass windows can be used for EMI/RFI shielding or other electro-optical applications such as liquid crystals and solar cells. The ITO coating thickness was chosen to provide an excellent balance between the sheet resistance of 50 - 80 Ω/sq and optical performance. N-BK7 provides excellent transmission in the visible and near infrared portions of the spectrum.

Termination
Contact to the conductive surface can be made by copper tape, a silver epoxy-painted busbar, a silver-loaded silicone gasket, or a conductive fabric over foam gasket. Do not place wires directly in contact with the surface, or damage may result.

Sheet Resistance
The resistance of these conductive windows is given by:

R = Rs * (L/W)

Where L and W are the length and width of the window, respectively, and Rs is the sheet resistance. Sheet resistance is defined as ρ/t: the resistivity (Ω*m) divided by the thickness (m) of the conductive film. Under the specific geometry of a square, where L = W, the resistance of the conductive windows is equal to the sheet resistance regardless of size. Under this special case, the sheet resistance is given in units of Ω/sq (Ohms per square).

Please contact Tech Support for more sizes, thicknesses, and wavelength options.


Posted Comments:
patrick_lee  (posted 2019-02-03 23:35:15.527)
We connect ITO glass with a safety circuit to monitor if the glass is broken. This means if the glass is broken, it will be detected by the circuit. My question : is there a way to check if the circuit is working, without actually breaking the glass ? Thanks Patrick
nbayconich  (posted 2019-02-06 01:33:38.0)
Thank you for contacting Thorlabs. The ITO window should measure approximately 50-80 ohms across the ITO coated surface if there is no break in the surface of the window. If the ITO window were to break this would create an open circuit reading a high impedance value. In order to connect your electrical contacts to the ITO layer we recommend using our copper tape and silver epoxy located in the link below. Do not place wires directly in contact with the surface, or damage may result. https://www.thorlabs.com/NewGroupPage9.cfm?ObjectGroup_ID=273
user  (posted 2018-05-17 10:32:33.14)
Please make these in a round format. (1", 2", 3" diameter) Thanks, Rick
YLohia  (posted 2018-05-17 04:25:32.0)
Hello Rick, thank you for your feedback. We may able to offer these as specials, though the sheet resistance may be higher. Since you did not leave you contact info, please contact your local Thorlabs Tech Support team via email for a quote.
schnell  (posted 2016-11-21 19:22:32.053)
Does the ITO coating reflect mid-infrared light? I am thinking about using the ITO coated windows as a beam combiner for a mid-IR beam (2-10um) that would be reflected under 45deg from the ITO coating and a visible pilot beam that would be transmitted through the window. Thank you!
tfrisch  (posted 2016-11-30 09:24:03.0)
Hello, thank you for contacting Thorlabs. Unfortunately, we are not able to guarantee any performance specs for the MIR. I will reach out to you directly about possible solutions for your application.
w.vassen  (posted 2013-11-26 10:47:34.493)
I would like to send a laser beam through this conductive window. Can it handle high power laser light? We use a about 1 W at 1083 nm from a fiber laser. Thanks for your answer. dr. wim Vassen
jlow  (posted 2013-12-06 04:25:39.0)
Response from Jeremy at Thorlabs: We do not have data on the damage threshold for the ITO window at the moment but the estimated value is around 100W/cm^2. We will test this and post the results on the webpage in the future.

Conductive Window, AR Coating: 1050 - 1620 nm

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
WTSQ11050-C Support Documentation
WTSQ11050-CCustomer Inspired! 1" Square Conductive Window, AR Coated: 1050 - 1620 nm
$120.12
Lead Time
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