Please note:  If you wish to place an international order with us, please email us at the address above with your requirements and full contact details and we will be happy to send you a quotation.


The industry standard laser thermal-sensitive paper, ZAP-IT is sensitive over a broad spectrum from ultraviolet to infrared, it is used to align external accessories to the laser beam axis, such as beam expanders, lenses, apertures, attenuators and power measuring equipment.


Additional information

ZAP-IT is simple to use. Hold or fasten it in the beam path at the point where the beam imprint is to be recorded. Pulse the laser and a permanent visual record is produced, corresponding to the energy distribution within the laser beam. If the laser being used is continuous wave (CW), create a short pulse by using a Q-switch, mechanical chopper, or by physically turning the laser on and off rapidly - use Zap-It laser paper with pulse-widths from 1ns to 30ms and pulse energy densities from 5mJ/cm^2 to 20J/cm^2.

ZAP-IT can be used to document;

  • Beam shape
  • Mode Quality (M^2)
  • Mirror alignment accuracy
  • Component positions
  • Energy distribution and beam edge definition
  • Divergence
  • Damaged optics within the beam path
  • Beam documentation before patient procedure

Note: For beam diameters less than 6.3mm it may be difficult to see the beam characteristics and the beam should be expanded. If using a planoconvex lens, locate the ZAP-IT paper at an image distance 2.5 x the focal length of the lens.



Other paper sizes, sheets printed with grid lines or targets, and adhesive paper are available upon request.

KEN-Zap-IT-HF. Hands free holder for ZAP-IT paper 4x8 inch or smaller.

+44 (0) 1829 773155

Secure payments with PayPal

PayPal and all major credit cards accepted.

Next day delivery for UK webshop orders received before 12 noon, subject to stock availability.

All prices shown exclude VAT and delivery.

Delivery charge for UK webshop orders - £8.50 excl VAT.

Non-UK orders - Delivery is based on weight of order.

Non-UK orders - Local import duties and taxes are not included.