Precisely measuring optical purity

The Laser Zentrum Hannover e.V. (LZH; Hannover, Germany; has developed a laser calorimeter that is able to measure the absorption of light in the material. Specific advantages of the device are its high sensitivity, absolute calibration, and a wide spectral range of the test wavelength.

By using a precise temperature measurement of the material, the laser calorimeter is able to detect an absolute absorption of <1 ppm (one millionth of the irradiated laser power). This preciseness can detect the smallest absorption data deriving from surfaces, coatings, or impurities in the material. Absorption measurements with laser wavelengths between 193 nm and 2000 nm are possible. In addition, the range between 670 nm and 2200 nm is completely accessible. Measured data can be used to optimize the material, machining, and coating processes. Thus, continuous improvement of respective characteristics of laser optics is possible.

Get All the Industrial Laser Solutions News Delivered to Your Inbox

Subscribe to Industrial Laser Solutions Magazine or email newsletter today at no cost and receive the latest news and information.

 Subscribe Now

Follow us at Join us on

Twitter - Industrial Laser Solutions


There is no current content available.
There is no current content available.

See Article Archive

View Industrial Laser Solutions past articles.

Copyright © 2007-2016. PennWell Corporation, Tulsa, OK. All Rights Reserved.PRIVACY POLICY | TERMS AND CONDITIONS