July/August 2019 Issue
Feature Articles
Still Plenty of Room at the Bottom
Six decades after Richard Feynman speculated about the angstrom-sized world, new optoelectronic and photonic technologies have surpassed his casual conjectures.
by Patricia DaukantasFrom Student to Nobel Laureate
Donna Strickland reflects on the road to CPA—and on her own winding path from research to recognition.
by Molly MoserDepartments and Columns
The addition of nanoparticles to food has the potential to improve food quality, safety and nutrition. However, because of their small size, there is also the risk that ingested nanoparticles could damage cells or organs. Here we look at some of the nanoparticles used in foods and some of the potential risks. (For more on nanotech, see this month’s cover story “Still Plenty of Room at the Bottom.”)
The Ins and Outs of Industry Collaboration
For optics and photonics companies, partnerships can sometimes be a double-edged sword.
Also in this Issue
30, 20, and 10 Years Ago in OPN
Thin-film security devices; LEDs for headlights; silicon marbles.
Vannevar Bush Faculty Fellowship Recipients / Optics in Space / OSA Fellow Profiles / NAS Gains New Members / Celebrating IDL 2019 / OSA at CLEO 2019 / OSA Hosts Quantum Bio-Photonics and Agri-Photonics Incubators / Thank You, Editors / Thank You, Volunteers

![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)