![current issue magazine cover](https://opn-web-afd-d3bfbkd5bcc5asbs.z02.azurefd.net/opn/media/images/articles/2022/0922/departments/cover-opn-sep22-webres.jpg?t=638452550231614113)
September 2022 Issue
Feature Articles
![](https://opn-web-afd-d3bfbkd5bcc5asbs.z02.azurefd.net/opn/media/images/articles/2022/0922/features/sundaram-icon2.jpg?t=638452550414571493)
Glasses in a Fraction of a Second
The development of ultrafast lasers has revolutionized the study and processing of glasses, enabling new applications and drawing closer to a full understanding of the liquid-to-glass transition.
by S.K. Sundaram![](https://opn-web-afd-d3bfbkd5bcc5asbs.z02.azurefd.net/opn/media/images/articles/2022/0922/features/cartlidge-icon.jpg?t=638452550378547707)
Deep Design for Optical Devices
Neural networks can create blueprints for complex device designs that would be difficult if not impossible to generate with traditional techniques.
by Edwin Cartlidge![](https://opn-web-afd-d3bfbkd5bcc5asbs.z02.azurefd.net/opn/media/images/articles/2022/0922/features/boriskina-icon2.jpg?t=638452550332143259)
The Nonreciprocal Adventures of Light
Reciprocity of light and energy transport is not a fundamental law—and breaking it can enable the “one-way” flow of optical energy, unlocking applications in energy harvesting, signal processing and thermal-emission control.
by Svetlana V. Boriskina, Morgan Blevins and Simo PajovicDepartments and Columns
![](https://opn-web-afd-d3bfbkd5bcc5asbs.z02.azurefd.net/opn/media/images/articles/2022/0922/departments/news-icon.jpg?t=638452550290906886)
Research and Industry News
Entanglement / Robot crabs / Novel interconnect / Wearable biosensors / Efficient solar cells / Student math, science scores / Artifical tissues / 3D images / Weather sensor / II–VI, Coherent merge / Metasurfaces come to market / ASML Q2 gains / Trumpf, Cellforce partnership
![](https://opn-web-afd-d3bfbkd5bcc5asbs.z02.azurefd.net/opn/media/images/articles/2022/0922/departments/infographic-icon.jpg?t=638452550277151203)
Student Knowledge: Math + Science
Administered every four years since 1995, the IEA's Trends in International Mathematics and Science Study (TIMSS) assesses mathematics and science knowledge of students around the world.
![](https://opn-web-afd-d3bfbkd5bcc5asbs.z02.azurefd.net/opn/media/images/articles/2022/0922/departments/career-icon.jpg?t=638452550197886036)
When Presenting, the Audience Is Always Right
Effective presentations require careful thought to put yourself in your listeners’ shoes.
![](https://opn-web-afd-d3bfbkd5bcc5asbs.z02.azurefd.net/opn/media/images/articles/2022/0922/departments/conversations-icon.jpg?t=638452550216242277)
Avoiding the Valleys of Death
A “System Readiness Level” metric could provide a baseline for lean product development.
![](https://opn-web-afd-d3bfbkd5bcc5asbs.z02.azurefd.net/opn/media/images/articles/2022/0922/departments/tutorial-icon.jpg?t=638452550328251575)
Vibration Sensing with Laser Speckle
How to record individual musical instruments playing in an ensemble, using laser light.
ADVERTISEMENT
ADVERTISEMENT
Also in this Issue
![](https://opn-web-afd-d3bfbkd5bcc5asbs.z02.azurefd.net/opn/media/images/articles/2022/0922/departments/pres-img1.jpg?t=638452550297391312)
In the Blink of an Eye
Science, like the universe, has its “big bangs.”
![](https://opn-web-afd-d3bfbkd5bcc5asbs.z02.azurefd.net/opn/media/images/articles/2022/0922/departments/looking-img1.jpg?t=638452550280698807)
30, 20, and 10 Years Ago in OPN
Cable television; paper management; Aden Meinel
![](https://opn-web-afd-d3bfbkd5bcc5asbs.z02.azurefd.net/opn/media/images/articles/2022/0922/departments/focus-img9b.jpg?t=638452550264785285)
News from the Society
Remembering Azzam and Weeks / Welker award / Imaging and sensing congresses / Optica Fellow stories / Optica Women Scholars / Siegman School / Congressional Fellows / Freeform optics / Thank you, editors and volunteers
![](https://opn-web-afd-d3bfbkd5bcc5asbs.z02.azurefd.net/opn/media/images/articles/2022/0922/departments/financial-icon.jpg?t=638452550235079585)
Optica Financial Report
Summary of Optica’s 2021 financial statements.
![](https://opn-web-afd-d3bfbkd5bcc5asbs.z02.azurefd.net/opn/media/images/articles/2022/0922/departments/aftimage-icon.jpg?t=638452550195084837)
Birefringence
Birefringence of glass-metal seal viewed through crossed polarizers.