Ray Beausoleil

HP Fellow
Intelligent Infrastructure Lab
Palo Alto


Ray Beausoleil is an HP Fellow in the Intelligent Infrastructure Lab (IIL) at HP Laboratories. There he leads the Large-Scale Integrated Photonics research group, and is responsible for research on the applications of optics at the micro/nanoscale to high-performance classical and quantum information processing.

In 1996, Ray became a member of the technical staff at HP Laboratories, after serving as an officer or director of R&D at three small companies in the laser and computer industries. Among his other accomplishments at HP, he invented the optical paper-navigation algorithms incorporated into the HP/Agilent optical mouse, and now HP's large-format printers.

Ray received the Bachelor of Science with Honors in Physics from the California Institute of Technology in 1980; the Master of Science degree in Physics from Stanford University in 1984; and his Ph.D. in Physics from Stanford in 1986 as a member of Ted Hansch's research group. As part of his dissertation research, he measured the frequency of the 1S-2S two-photon transition in atomic hydrogen with a precision of 6 parts in 10 billion.


Research interests

Ray's work has incorporated nearly all aspects of the physics of the interaction of electromagnetic radiation and matter, as well as experimental general relativity, computer modeling of physical systems, and computer algorithms. He has expertise in a variety of fields, including solid-state laser physics, nonlinear optics, quantum optics, quantum information science and technology, nanophotonics, embedded computer algorithms, and image processing.


Ray is an HP Fellow. HP Fellows are pioneers in their fields, setting the standards for technical excellence and driving the direction of research in their respective disciplines.


Ray has published and/or presented hundreds of papers and conference proceedings (including many invited papers and keynote/plenary addresses) and five book chapters. A partially complete list can be found on ResearcherID This is a Non-HP site.


Ray is an inventor or co-inventor on more than 60 US patents.

Professional activities

Ray is a Consulting Professor at Stanford University in the Department of Applied Physics, where his work focuses on mesoscopic quantum optics and gravitational-wave detection.