Laser Focus World

Since its inception in 1965, Laser Focus World has been a monthly publication catering to engineers, researchers, scientists, and technical experts. It offers extensive coverage of optoelectronic technologies, their applications, and market trends on a global scale. The magazine is currently subscribed to by almost 70,000 qualified professionals in the optoelectronics field worldwide. Alongside in-depth articles authored by the magazine's own editors, Laser Focus World also welcomes contributions from qualified external writers, including articles, news updates, and information about new products for publication.

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Laser sintering method simplifies ultrahigh-temperature ceramics

1 week ago | laserfocusworld.com | Sally Johnson

A new twist on sintering developed by North Carolina State University engineers led by Cheryl Xu, a professor of mechanical and aerospace engineering, taps lasers to turn raw materials—in either liquid or powder form—into ceramic materials with potential for space, defense, and nuclear power applications that must withstand ultrahigh temperatures within extreme environments.
Scientists observe quantum vacuum phenomenon theoretically predicted >50 years ago

2 weeks ago | laserfocusworld.com | Sally Johnson

Rice University scientists recently reported a direct observation of an elusive quantum phenomenon theoretically predicted more than 50 years ago—and it opens a new frontier in quantum materials research. The superradiant phase transition (SRPT) has intrigued physicists for decades because it represents a profound type of quantum phase transition driven purely by collective coupling between quantum vacuum fluctuations and materials.
Researchers create ‘quantum rain’

3 weeks ago | laserfocusworld.com | Sally Johnson

A team of researchers in Italy recently discovered that a mixture of ultracold gases shaped into a filament breaks up akin to a jet of water into multiple droplets, thanks to surface tension. Droplets formed from quantum gases—quantum droplets—are tiny clusters of atoms with liquid-like properties whose stability is ensured by quantum effects.
PODCAST: Interview with Jason Eichenholz, startup founder, entrepreneur, and inventor

3 weeks ago | laserfocusworld.com | Justine Murphy

This episode features Jason Eichenholz, an entrepreneur who has founded several tech startups, and a recognized pioneer in laser- and photonics-enabled innovation. He's also founder of Jonathan's Landing Foundation, a nonprofit that creates a comprehensive community for adults with autism. Following the Photons: A Photonics Podcast dives deep into the fascinating world of photonics and optics. Join us as we bring you the latest news and insights from the forefront of the photonics industry.
Can single-mode fiber arrays drive down cost and complexity of copackaged optics?

1 month ago | laserfocusworld.com | Sally Johnson

As the worlds of advanced semiconductor packaging, optics, photonics, and networking converge to accommodate the performance needs of high-performance computing, AI data centers, and quantum computing, it’s becoming essential to combine optical and electrical functions within the same package, a.k.a. copackaged optics. Why turn to copackaged optics with silicon photonics as a solution? It accommodates bandwidth density and energy efficiency challenges.
Photonics Hot List: May 23, 2025

1 month ago | laserfocusworld.com | Justine Murphy

In this episode of Photonics Hot List:A new approach involving noninvasive functional near-infrared spectroscopy, designed to study the developing newborn child brain, has discovered that infants may begin learning even before birth. Optics manufacturer Gooch & Housego is expanding its presence in the military and defense sector via the recent acquisition of a thin-film coatings developer. Gooch & Housego is expanding overall, too, with the opening of its Innovation Hub for Life Sciences.
‘Hot’ Schrödinger cat states can be created

1 month ago | laserfocusworld.com | Sally Johnson

A recent collaboration led by University of Innsbruck researchers in Austria revealed that hot (alive) Schrödinger cat states can indeed be created within a superconducting microwave resonator—and it means quantum phenomena can be generated and used within less perfect and warmer conditions than previously believed.
Horizontal-cavity surface-emitting superluminescent diodes boost image quality for AR/VR

1 month ago | laserfocusworld.com | Justine Murphy

A team from Vivid Photonics—a spinoff of Tyndall National Institute and the Research Ireland Centre for Photonics—has developed horizontal-cavity surface-emitting superluminescent diodes (SLDs) to significantly boost image quality for augmented and virtual reality applications (see video). These novel light sources combine the characteristics of both lasers and light-emitting diodes (LEDs). “This is an advance in photonics,” says Muhammet Genc, CTO of Vivid Photonics.
Terahertz near-field imaging approach goes deep into the ear

1 month ago | laserfocusworld.com | Justine Murphy

A team at Waseda University (Shinjuku, Japan)—working with researchers from the Institute of Laser Engineering at Japan’s Osaka University, Kobe University (Hyogo, Japan), the Georgia Institute of Technology (Atlanta, GA), and the Research Institute for Interdisciplinary Science at Okayama University (Okayama, Japan)—has developed a 3D terahertz near-field imaging technique to examine the cochlea, a spiral-shaped organ within the inner ear responsible for hearing; it converts sound waves into...
Photonics Hot List: May 16, 2025

1 month ago | laserfocusworld.com | Justine Murphy

In this episode of Photonics Hot List:Distant exoplanets are overshadowed by the so-called parent star they orbit, making it nearly impossible for scientists here to study them. But a twist on an existing coronagraph device, developed by a team at the University of Arizona, could change that. The research was also detailed in the journal Optica. In the business sector, eyeo, a Netherlands-based spinoff of imec, has received seed funding to advance their novel color-splitting technology.