Features

Wavelength Ranges Covering UV and IR
Detects Radiation as Low As 1 nW/cm²
Easy to Use
Minimal Optical Charging
Free of Hazardous Reflections

The VRC1 and VRC4 are credit-card-sized viewing cards; each has a photosensitive region that allows for the easy location of an IR, VIS, or UV light beam and its focal point. The card is made from a durable plastic with a photosensitive region adhered to the front surface of the card. Since the active region does not require charging, the emission is persistent even when used in CW applications in a darkened room. The detection region extends all the way to the edge of the card in order to facilitate the use of the card during alignment procedures. In addition, when the card is used in a darkened room with a sufficiently bright source, the fluorescence from the activated photosensitive region can be seen through the back of the card or the photosensitive region can be activated by illuminating the back of the card. This is especially useful for aligning the overlap of two beams.

The VRC2 is similar to the VRC4 and VRC1 except that it requires the user to charge the card with light from a visible light source. Also, the emissions from the card are not persistent and require the user to move the card around for optimal brightness of the beam spot.

The VRC5 is a smaller card measuring 2.4" x 1.79" (61.87 mm x 45.5 mm) and is designed for the 700 to 1400 nm wavelength range ; this card also requires room light charging. The photosensitive area meaures 1.5" x 0.75" (38.1 mm x 19 mm) and is encapsulated between two layers of durable clear plastic.

Please refer to the Specs and Graphs tabs for specifications and plots of the absorption bands for each of these products.

Thorlabs also offers IR or Visible Light Alignment Disks in half inch, one inch, or RMS microscope objective compatible sizes. Since they are the same size as many of the common optics found in experimental setups, they can be easily inserted into a setup to assist with beam alignment. Please follow this link for more information.

VRC1	VRC2

VRC4	VRC5

Please Give Us Your Feedback

Email		Feedback On
(Optional)
Contact Me:
Your email address will NOT be displayed.

Please type the following key into the field to submit this form:
Click Here if you can not read the security code.
This code is to prevent automated spamming of our site
Thank you for your understanding.

Would this product be useful to you? Little Use 1 2 3 4Very Useful

Enter Comments Below:

Characters remaining 8000

Posted Comments:
Poster: apalmentieri	Posted Date: 2010-03-01 15:22:10.0
A response from Adam at Thorlabs to fschewe: The text on the physical VRC2 card shown on our website is incorrect. The range is 400-640nm and we will correct this picture right away. If you recieved a card with the incorrect text, we can send a replacement card out to you.

Poster: fschewe	Posted Date: 2010-02-26 15:01:24.0
On the VRC2 is written 400-540 nm but it is officially specified for 400-640 nm. What is right?

Poster: klee	Posted Date: 2009-11-20 16:10:50.0
A response from Ken at thorlabs to traub: Unfortunately, we do not carry any viewing card for the Mid-IR range. I was unable to source this from other companies neither.

Poster: traub	Posted Date: 2009-11-18 15:26:53.0
Hello, I search for a sensor card that works in the mid infrared (2-5 um). I did not find such a card in your product catalog and/or website. Can you help me finding such MIR sensor cards? Thanks in advance, Tobias

Poster: Laurie	Posted Date: 2009-04-21 16:55:14.0
Response from Laurie at Thorlabs to smarka: Thank you for your interest in our products. We can provide the VRC4 with the requested dimensions. To provide a quote, we will need some additional information. Someone from our technical support staff will contact you directly.

Poster: smarka	Posted Date: 2009-04-20 11:43:10.0
I would like to know whether it would be possible to have VDIR (or VRC4) coated material available in larger sheets. 4"x4" or 10"x10" would be extremely useful. Thank you!

Poster: Tyler	Posted Date: 2008-11-03 16:58:13.0
A response from Tyler at Thorlabs to aren100won: I will contact you via email in case you had trouble with our feedback form.

Poster: Tyler	Posted Date: 2008-11-03 16:56:42.0
A response from Tyler at Thorlabs to Antonio_Oliver: I will forward this question to our technical support department who will then contact you. Thank you for considering us for this request. We always appreciate hearing about what the research community needs and Thorlabs is dedicated to fulfilling those needs whenever possible.

Poster: aren100won	Posted Date: 2008-11-03 02:44:02.0
sdfsdf

Poster: Antonio_Oliver	Posted Date: 2008-10-22 08:39:52.0
I would like to be able to purchase a large 30cm by 30cm detection "sheet." For our application, we often have to locate and align an array of multiple beams at once. Is it possible to get a custom product like what I have described above? Antonio

Poster: TechnicalMarketing	Posted Date: 2007-11-19 11:24:16.0
Dear acable, Thank you for your excellent suggestions. The active area of the VC-1550, VC-VIS/IR, and VC-UV viewing cards has been extended to the edge of the card and the back of the card behind the active region no longer has black ink on it so that in certain conditions the spot can be seen through the card. Your request for adding the absorption curves to the back of the card has been forwarded to a design engineer and will hopefully be implemented in the future.

Poster: acable	Posted Date: 2007-11-10 14:20:23.0
It would be good to extend the active area right to the end of the card. Also the back side of the card should be white, with the room lights out i can typically see a spot thru the card after i scrap off the black ink. It would also be good to have separate price boxes for each of the cards, with a photo of the card and the corresponding response curve. Not sure if the response curve is printed on the back of the VC-series cards but if not i would suggest adding it.