
July/August 2025 Issue
Feature Articles

Entrepreneurs to Watch
In this biennial feature, OPN throws the spotlight on a selection of creative scientists and engineers—and the enterprises they’re building.
by OPN Staff
New Frontiers in Spatiotemporally Structured Light
Coupling the spatial and temporal degrees of freedom of light is providing a new perspective on the behavior and applications of pulsed optical beams.
by Ayman F. Abouraddy, Murat Yessenov, Ivan Divliansky and Abbie T. Watnik
Spectroscopy for Cultural Heritage Science
The spectroscopic analysis of historical and archaeological samples presents unique challenges and exciting opportunities for the optics and cultural heritage communities.
by Lara Heidrich and Martin KochDepartments and Columns

Research and Industry News
Nanoplastics in bodily fluids / Ice loss alters ocean light spectrum / Toward quantum networks / Low-cost liquid lenses / Nonlinear photonic chips / New color comes into view / Industry news

Building a Giant Telescope
The Giant Magellan Telescope’s William Burgett talks about managing a project on a massive scale.

Why Capital Flows Matter to Optics and Photonics Engineers
John Dexheimer discusses financing for the optics and photonics industry.

Frequency Combs for Chemistry, Biology and Medicine
Optical frequency combs can provide new insights into molecular diagnostics and disease mechanisms.
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Also in this Issue

Honing the Skill of Creativity
Trailblazing ideas thrive when people can assemble existing elements in new patterns.

30, 20, and 10 Years Ago in OPN
Rapid production realization; high-energy petawatt capability for the Omega laser; optoelectronics in flatland

News from the Society
In memoriam: Joseph Eberly / Celebrating IDL / Virkkunen named Advocate of Optics / Koch retires from UofA / Stanford Photonics Retreat / Congressional Fellows / Thank you, editors and meeting chairs

Optica Election for 2026 Offices
Review the candidates for Optica's 2026 Vice President and Directors-at-Large election.

2D Histogram of Polynomial Solutions
A 2D histogram on the complex plane of the number of solutions from a given set of polynomials generated from a set of 7×7 matrices.