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

Hexapod 6-DOF Active Optical Alignment Micro-Robots - Enablers for Advanced Camera Manufacturing

Dec. 18, 2024
Optics and camera manufacturing benefits from the flexibility of 6-Axis hexapod active optical alignment robots and advanced motion control software

Laser Assisted Wafer Slicing with 3DOF Motion Stages

Dec. 18, 2024
Granite-based high-performance 3-DOF air bearing nanopositioning stages provide ultra-high accuracy and reliability in semiconductor & laser processing applications.

Steering Light: What is the Difference Between 2-Axis Galvo Scanners and Single Mirror 2-Axis Scanners

Dec. 18, 2024
Advantages and limitations of different 2-axis light steering methods: Piezo steering mirrors, voice-coil mirrors, galvos, gimbal mounts, and kinematic mounts.

Free Space Optical Communication

Dec. 18, 2024
Fast Steering Mirrors (FSM) provide fine steering precision to support the Future of Laser Based Communication with LEO Satellites

Voice your opinion!

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