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March 2024 Issue
Feature Articles
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New Views on Battery Diagnostics
To improve the lithium-ion batteries that power electric vehicles, scientists need techniques that offer insights into their internal dynamics.
by Susan Curtis![](https://opn-web-afd-d3bfbkd5bcc5asbs.z02.azurefd.net/opn/media/images/articles/2024/0324/features/202403-p34-bogaerts-icon.jpg?t=638441955067236955)
Programmable Photonics
With the addition of programmability and software, photonic chips can enter a new era of flexibility, creativity and diverse applications.
by Wim Bogaerts![](https://opn-web-afd-d3bfbkd5bcc5asbs.z02.azurefd.net/opn/media/images/articles/2024/0324/features/202403-p42-berry-icon.jpg?t=638441955084581000)
A Geometric-Phase Timeline
Global change without local change—a connecting idea in the physics of optical, quantum and other waves—has a multistranded history spanning two centuries.
by Michael BerryDepartments and Columns
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Research and Industry News
Spinning metasurface imagers / Detecting nanoplastics / Solar-powered clothes / Quantum dots catch tricky wavelengths / Film-based gamma-ray “telescope” / Industry news
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Sourcing Lithium
A look at the global distribution of lithium—a critical component in the rechargeable batteries that power electric vehicles and many of today’s electronics.
![](https://opn-web-afd-d3bfbkd5bcc5asbs.z02.azurefd.net/opn/media/images/articles/2024/0324/departments/202403-p18-convo-icon.jpg?t=638441952661278298)
Fiber Technology for the Future
Microsoft’s David Richardson will speak at the upcoming OFC conference about recent progress in emerging transmission fibers.
![](https://opn-web-afd-d3bfbkd5bcc5asbs.z02.azurefd.net/opn/media/images/articles/2024/0324/departments/202403-p20-career-icon.jpg?t=638441952666434658)
Embracing One-on-One Feedback
Timely course corrections are vital to professional success.
![](https://opn-web-afd-d3bfbkd5bcc5asbs.z02.azurefd.net/opn/media/images/articles/2024/0324/departments/202403-p24-light-icon.jpg?t=638441952671591193)
A Frozen Moment of Motion
The story of how William Henry Fox Talbot’s markedly unremarkable photograph may have been the first demonstration of strobe photography.
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Also in this Issue
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How Do We Assess Research?
Many in our community have concerns regarding how research quality is assessed.
![](https://opn-web-afd-d3bfbkd5bcc5asbs.z02.azurefd.net/opn/media/images/articles/2024/0324/departments/202403-p09-look-img03.jpg?t=638441952650804091)
30, 20, and 10 Years Ago in OPN
Femtosecond lasers; quantum key distribution; Li-Fi.
![](https://opn-web-afd-d3bfbkd5bcc5asbs.z02.azurefd.net/opn/media/images/articles/2024/0324/departments/202403-p50-oif-img01.jpg?t=638441952676591260)
News from the Society
Optica Community / Optics chair at Wits / Tyndall Award / Optica Fellow stories / Light Conversations / Treasurer’s Award / JLT highly cited paper / In memoriam: Dennis Hall / Online industry meeting / Structured Light and Darkness webinar / Thank you, editors and meeting chairs
![](https://opn-web-afd-d3bfbkd5bcc5asbs.z02.azurefd.net/opn/media/images/articles/2024/0324/departments/202403-p56-aftimg-icon.jpg?t=638441952694872847)
Illuminated Tissue
Soft tissue (leg) contact-illuminated by an LED-panel headlight.