Irnee D’Haenens, laser pioneer, dies

Feb. 1, 2008
Irnee D’Haenens (right), a physicist who assisted Ted Maiman (left) in making the first laser at Hughes Research Laboratory (Malibu, CA) in 1960, died Dec. 24, 2007; he was 73.
(Hughes Photo, courtesy of AIP Niels Bohr Library)
Th 0802lfwn12

Irnee D’Haenens (right), a physicist who assisted Ted Maiman (left) in making the first laser at Hughes Research Laboratory (Malibu, CA) in 1960, died Dec. 24, 2007; he was 73. The two were the only people present when a little ruby rod emitted the world’s first pulse of laser light on May 16, 1960. Later, D’Haenens called the laser “a solution looking for a problem,” a joke that became common in the early years of the laser era as developers sought laser applications.

Born in Mishawaka, IN, the son of a service-station operator, D’Haenens spent his entire career at Hughes, starting while he was earning a masters degree from the University of Southern California. He received a Hughes doctoral fellowship and earned his Ph.D. from the University of Notre Dame in 1966. While at Hughes, he worked on semiconductor physics, microwave technology, and spectroscopy, as well as lasers, before retiring in 1989. A long-time Hughes colleague, David Pepper, recalled D’Haenens as “a wise and learned uncle, who helped me travel along my path in life,” whose first priority was always his family. He is survived by his wife Shirley, four children, 19 grandchildren, and three great-grandchildren. 

About the Author

Jeff Hecht | Contributing Editor

Jeff Hecht is a regular contributing editor to Laser Focus World and has been covering the laser industry for 35 years. A prolific book author, Jeff's published works include “Understanding Fiber Optics,” “Understanding Lasers,” “The Laser Guidebook,” and “Beam Weapons: The Next Arms Race.” He also has written books on the histories of lasers and fiber optics, including “City of Light: The Story of Fiber Optics,” and “Beam: The Race to Make the Laser.” Find out more at jeffhecht.com.

Sponsored Recommendations

Demonstrating Flexible, Powerful 5-axis Laser Micromachining

Sept. 18, 2024
Five-axis scan heads offer fast and flexible solutions for generating precise holes, contoured slots and other geometries with fully defined cross sections. With a suitable system...

Enhance Your Experiments with Chroma's Spectra Viewer

Sept. 5, 2024
Visualize and compare fluorescence spectra with our interactive Spectra Viewer tool. Easily compare and optimize filters and fluorochromes for your experiments with this intuitive...

Optical Filter Orientation Guide

Sept. 5, 2024
Ensure optimal performance of your optical filters with our Orientation Guide. Learn the correct placement and handling techniques to maximize light transmission and filter efficiency...

Ensure Optimal Performance with Shortpass Filters

Sept. 5, 2024
Achieve precise wavelength blocking with our Shortpass Filters. Ideal for applications requiring effective light transmission and cutoff, these filters ensure optimal performance...

Voice your opinion!

To join the conversation, and become an exclusive member of Laser Focus World, create an account today!