Voting period is over. Please don't add any new votes. Voting period ends on 25 Apr 2020 at 01:58:49 (UTC)

Reason: The photo shows the subject of the article in a simple and easy to comprehend way. It shows the birefringence property of a crystal as the laser beam splits in two while traveling from left to right. There is also some secondary fluorescence effects. FP on Commons.
Articles in which this image appears: Birefringence
FP category for this image: Wikipedia:Featured pictures/Sciences/Materials science
Creator: Jan Pavelka

Support as nominator – Bammesk (talk) 01:58, 15 April 2020 (UTC)[reply]
Support - This is real pretty to look at. GamerPro64 05:14, 15 April 2020 (UTC)[reply]
Support. I think it's neat that the doubled beam within the crystal generates the appearance of four beams in the image because of the birefringence happening a second time at the crystal face parallel to the image plane. —David Eppstein (talk) 07:43, 15 April 2020 (UTC)[reply]
Support. MER-C 16:24, 16 April 2020 (UTC)[reply]
Support --Gnosis (talk) 06:42, 18 April 2020 (UTC)[reply]
Support – DreamSparrow ^Chat 05:56, 21 April 2020 (UTC)[reply]

Promoted File:Fluorescence in calcite.jpg --Armbrust ^{The Homunculus} 02:06, 25 April 2020 (UTC)[reply]