October 2024 Issue
Feature Articles
Programmed Diffraction for Intelligent Imaging and Sensing
Advances in artificial intelligence have opened a powerful approach: compact optical networks of diffractive surfaces that can rapidly achieve specific tasks via direct, energy-efficient processing of light.
by Yuhang Li, Md Sadman Sakib Rahman and Aydogan OzcanHow the Laser Found Problems to Solve
While some initially wondered about practical applications for the laser—an invention born out of basic research—within a few decades after its first appearance, it was offering solutions ranging from high-speed printing to crystal-clear music.
by Jeff HechtDepartments and Columns
Looking to the Future of Fusion Energy
At the Optica Laser Congress and Exhibition, Tammy Ma will talk about developments in laser inertial fusion and the path to commercialization.
How Investors Learned to Love Fusion Energy
Fusion energy development requires more than just technology—it needs private funding.
Switchable Privacy Displays for Safe Driving
Optical measurements are important to ensure that vehicle passengers can view dedicated displays without distracting the driver.
Also in this Issue
30, 20 and 10 Years Ago in OPN
Edwin Land; terahertz imaging; high-energy lasers for defense.

![Manual probe system with needles for test of semiconductor on silicon wafer. [A. Morozov / Getty]](https://opnmedia.blob.core.windows.net/$web/opn/media/images/articles/2025/1125/departments/202511-cover-web.jpg?ext=.jpg)
![Researcher Clara Saraceno in the lab. [Image by Carsten Behler Photography]](https://opnmedia.blob.core.windows.net/$web/opn/media/images/articles/2025/1025/departments/202510-cover-web.jpg?ext=.jpg)