Caustics

Caustics formed by LEDs imaging through a doublet lens.  [Winner 2014 After Image photo contest.] — Page E. King, College of Optical Sciences, Tucson, Ariz., USA

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26 Nov 2014

Green laser beam

A green laser beam crosses three glasses filled with canola oil, water and extra virgin olive oil. The oils modify energetic photons (green) to photons at lower energies: orange for canola oil, and red for olive oil; in an effect called fluorescence. However, the beam is so intense that you can see the green color as the laser passes through the glass of water, which is not fluorescent. [Second Place 2014 After Image photo contest.] —Vicente Torres-Zúñiga, Universidad Nacional Autonoma de Mexico

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26 Nov 2014

Self-focusing light

Self-focusing light filaments leading to catastrophic damage of a laser rod. [Third Place 2014 After Image photo contest.] —SImi George, SCHOTT-North America, USA

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26 Nov 2014

Interference in a film

Interference within a thin film delaminating from its substrate. [Honorable Mention 2014 After Image photo contest.] —Matthias Feinaeugle, Optoelectronics Research Centre, United Kingdom

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26 Nov 2014

Optical parametric amplification.

Optical parametric amplification.[Honorable Mention 2014 After Image photo contest.] — Rocio Borrego-Varillas, Italy

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26 Nov 2014

Under the Milky Way

A eucalyptus tree under the Milky Way at the mythic prehistoric painting of Quinkan in Australia. [Honorable Mention 2014 After Image photo contest.] —Preudhomme Bastien Blindoff, France

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26 Nov 2014

Supercontinuum source

A supercontinuum source launched into a microfiber based long period grating. [Honorable Mention 2014 After Image photo contest.] — Jinhui Chen, China

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26 Nov 2014

Moon on a meteo Radar

Moon picture mapped on a meteo Radar in Réunion Island, France. — Preudhomme Bastien Blindoff, France

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26 Nov 2014

Light on the volcano

Light on the volcano that inspired the Réunion Island flag. — Preudhomme Bastien Blindoff, France

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26 Nov 2014