ADVERTISEMENT
2 /3 FREE ARTICLES LEFT THIS MONTH Remaining
Chemistry matters. Join us to get the news you need.

If you have an ACS member number, please enter it here so we can link this account to your membership. (optional)

ACS values your privacy. By submitting your information, you are gaining access to C&EN and subscribing to our weekly newsletter. We use the information you provide to make your reading experience better, and we will never sell your data to third party members.

ENJOY UNLIMITED ACCES TO C&EN

Synthesis

Chemistry in Pictures: Beaming with pride

January 31, 2018

Credit: Andres Tretiakov

Andres Tretiakov, a laboratory technician at a high school in London, had read that iodine vapor fluoresces when excited by a helium-neon laser. So he decided to give it a go. After heating a few solid iodine crystals so they’d sublime—turn from solid to gas—he shined his green laser pointer through the flask. “To my surprise, I saw that it had worked,” Tretiakov says. The iodine vapor glowed orangey yellow when excited by the laser light, which had a wavelength of 532 nm.

Submitted by Andres Tretiakov

Do science. Take pictures. Win money. Enter our photo contest here.

Related C&EN content:

Truly sublime

Orange is the new green.


For more Chemistry in Pictures, visit our new home on cen.acs.org.

X

Article:

This article has been sent to the following recipient:

Leave A Comment

*Required to comment