# @optica.worldwide on Instagram

- **Type:** Image
- **Original URL:** https://www.instagram.com/p/DMp6yUJMogU
- **Gondola URL:** https://gondola.cc/posts/32812911-opticaworldwide-instagram
- **Thumbnail:** https://img.gondola.cc/tr:w-,h-,fo-auto/postThumbnails/cbe1689ae8.jpg
- **Posted:** 2025-07-28T14:34:01.000+00:00
- **Account Owner:** Optica (@optica.worldwide) — https://gondola.cc/optica.worldwide

## Caption

Image of the Week: The Spot of Arago

Arago's spot is visible at the center of the shadow behind a spherical ball bearing illuminated with a laser. Although the obstruction is opaque, coherent superposition of the diffracted light from around the circumference constructively interferes to produce a bright spot on-axis. 

—Jason Zweiback, Triangulum Technology, Diablo, CA, USA

*Link in Bio

#laser #light #arago

## Stats

- **Views:** 0
- **Likes:** 103
- **Shares:** 0
- **Comments:** 0

## Tags

laser, arago, light

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