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Color: From Nature to Applications

OPN talks with U.K. researcher and FiO+LS 2019 invited speaker Silvia Vignolini about her work engineering structural colors based on models in the natural world.

09/17/2019 16:19

Light Confinement Gets Extreme

In a “Visionary Speakers” talk at FiO+LS 2019, Jeremy Baumberg of Cambridge University looked at the emerging discipline of “picophotonics”—and the opportunities it’s opening.

09/16/2019 13:31

Retroreflective Structural Colors

Researchers in China and the U.S. create an inexpensive film that could passively add bright, shifting and attention-grabbing colors to critical road signs and other nighttime displays.

08/12/2019 06:00

Chameleon-Inspired Films for Soft Robotics

“Structural-color films” embedding silica nanospheres move and shift colors in the presence of vapors, with possible implications in camouflage and sensing.

08/02/2019 07:43

Stress Control Yields Inkless Color Printing

Japanese team takes advantage of light-controlled, stress-induced “crazing” in polymer films to create a novel approach for printing 14,000-dpi images.

06/21/2019 07:59

Clear Droplets Produce Iridescent Colors

A previously unexplained form of structural color could be harnessed for color-changing applications such as cosmetics, sensors and adaptive camouflage.

03/07/2019 06:00

Picking Apart an Arachnid Rainbow

Airfoil-shaped nanogratings on the abdomens of tiny spiders enable a spectacular courtship display—and could inspire designs for miniature optical components.

01/08/2018 08:12

Structural Colors in a Heartbeat

A polymer diffraction grating and a microscope provide a means for assessing drugs’ effects on cardiac rhythms.

11/09/2017 08:39

Beetle-Inspired Structural Colors

Researchers develop a low-cost hydrothermal growth technique to fabricate biomimetic, tunable structural colors that could find use in sensors and microelectrodes.

06/21/2017 10:48

The Buttercup’s Functional Optics

A team in the Netherlands investigates the roots and purpose of the flower’s celebrated glossy yellow color.

02/28/2017 07:43
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