0

First Picture of an Atom’s Shadow

From National Geographic:

Scientists have taken the first ever snapshot of an atom’s shadow—the smallest ever photographed using visible light. The imaging technique could have big implications for genetic research and cryptography, researchers say.

The pioneering shutterbugs used an electrical field to suspend a charged atom, or ion, of the element ytterbium in a vacuum chamber. They then shot a laser beam—about a thousand times wider than the atom—at the ytterbium.

The ytterbium atom absorbed a tiny portion of the light, and the resulting shadow was magnified by a lens attached to a microscope, then recorded via a digital camera sensor.

The team used ytterbium because they knew they could create lasers of the right color to be strongly absorbed by the element.


Join 7,000+ makers on Adafruit’s Discord channels and be part of the community! http://adafru.it/discord

CircuitPython in 2018 – Python on Microcontrollers is here!

Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Follow Adafruit on Instagram for top secret new products, behinds the scenes and more https://www.instagram.com/adafruit/


Maker Business — American startups are having an increasingly smaller share of the market

Wearables — A bevel illusion

Electronics — Don’t float!

Biohacking — Optimizing the Warm Up

Python for Microcontrollers — CircuitPython 3.0.0 released!

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at AdafruitDaily.com !



No Comments

No comments yet.

Sorry, the comment form is closed at this time.