# The Physics of Un-Hackable Face Recognition | Rob Devlin on Metalenz

Page: https://stenobird.com/podcast/632nm-6933948/the-physics-of-un-hackable-face-recognition-rob-devlin-on-metalenz
Text version: https://stenobird.com/podcast/632nm-6933948/the-physics-of-un-hackable-face-recognition-rob-devlin-on-metalenz.md
Podcast: [632nm](https://stenobird.com/podcast/632nm-6933948)
Published: 2026-04-21T15:00:00+00:00
Episode link: https://share.transistor.fm/s/275d2fff
Audio file: https://media.transistor.fm/275d2fff/9baa6056.mp3
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JSON: https://stenobird.com/v1/public/podcasts/632nm-6933948/episodes/the-physics-of-un-hackable-face-recognition-rob-devlin-on-metalenz
Duration seconds: 4439

## Resource

How do you turn a flat piece of nanostructured material into a secure biometric sensor? In this episode, we speak with Rob Devlin, co-founder and CEO of Metalenz, about how metasurfaces are transforming optics and enabling a new generation of biosecure sensing. Devlin explains how engineers can control light at the subwavelength scale to replace bulky lens stacks with a single flat surface, and why the real breakthrough isn’t just miniaturization, but the ability to mass-produce optics in semiconductor fabs. We explore how Metalenz scaled metasurfaces from academic prototypes into millions of devices, and what it takes to design optics for manufacturing. Devlin breaks down the transition from building one perfect device in a cleanroom to producing millions that all meet tight specifications. The conversation focuses on polarization imaging as a new information channel in consumer devices. Unlike traditional cameras that capture only intensity and color, polarization reveals material properties. This enables a new approach to facial recognition that is both more secure and more compact than existing systems. Rob also shares the story behind Metalenz, from its origins in a Harvard lab to partnerships with major semiconductor manufacturers, and how the company navigated the challenges of finding product-market fit, scaling fabrication, and building a new sensing stack from scratch. Whether you’re interested in optics, nanofabrication, consumer electronics, or the future of biometric security, this episode explores how controlling light at the nanoscale is opening entirely new possibilities for sensing and identity verification. Follow us for more technical interviews with the world’s greatest scientists: Twitter: https://x.com/632nmPodcast Instagram: https://www.instagram…

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