December 2023 Issue
Feature Articles
This special issue of Optics & Photonics News highlights exciting peer-reviewed optics research that has emerged over the past year.
Congratulations to the winners of OPN’s 18th annual After Image photo contest!
Departments and Columns
Low-cost ultrafast photography / Air-based Bragg grating / Detecting postpartum hemorrhage / OAM polarization entanglement / Wearable glucose sensor / Enhanced microcombs / Industry news
Iris Ornaments: The Beauty in Diffraction
Since the first gratings were constructed, there have been a number of attempts to commercialize their color-producing effects as decorative elements.
Each December, OPN looks at interesting research results of the past year. But what about the year ahead? We asked several contributors to our “Optics in 2023” feature for thoughts on areas that might advance in 2024.
Also in this Issue
Whatever our politics, we must agree that nothing can justify terrorism targeting the innocent.
30, 20, and 10 Years Ago in OPN
VCSELs; micro-optics and quantum optics; rewriteable digital laser
Engineering Excellence Award / Pozo makes “Photonics 100” / Capitol Hill photonics showcase / Officer elections / Optica Fellow stories / Optica Foundation Challenge winners / Best paper prizes / Dainty wins RPS awards / ECOC in Scotland / FiO LS and Laser Congress / Treasurer’s Award / Thank you, editors and meeting chairs
A row of consecutive dichroic filters is obliquely illuminated by a circular white torchlight, creating a diverse range of colors.
![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)
