Unlocking FTIR Spectroscopy: The Importance of Beamsplitters and Coatings

The presentation will discuss the Fourier Transform Infrared Spectroscopy (FTIR) advantages of selected types of beamsplitter, including Potassium Bromide (KBr), Zinc Selenide (ZnSe), and Cesium Iodide, and the use of each material for further resolution and spectral scan lengths. In addition, specific beamsplitter coatings critical to the instrument performance will be covered during this session.

FTIR is a technique that uses the absorption of infrared energy to establish an infrared fingerprint of chemical compounds. The system typically uses an interferometric technique that scans the infrared spectrum and passes that spectrum through a sample compound. The vibrational modes of each compound can be studied using the absorption of the infrared energy. Known for its high resolution and high sensitivity, FTIR relies heavily on accurate and precise beamsplitters that offer broad transparency in the infrared region.

About the presenter
Chris Harrower, Ph.D., is the senior process engineer manager at Omega Optical, where he brings a wealth of expertise in infrared optics and advanced engineering processes. With a career spanning pivotal roles at Nanowave Technologies and Aversan, he honed his thin film process engineer and test engineer skills, contributing to innovative advancements in the optics and photonics industry.

Harrower holds a doctorate in electrical and computer engineering from the University of Alberta, with a specialization in nanoscience. His academic and professional journey reflects a deep commitment to pushing the boundaries of technology and driving excellence in optical engineering.