Angle-dependent structural colors in a nanoscale-grating photonic crystal fabricated by reverse nanoimprint technology

• Xu Zheng,
• Qing Wang,
• Jinjin Luan,
• Yao Li,
• Ning Wang and
• Rui Zhang

Beilstein J. Nanotechnol. 2019, 10, 1211–1216, doi:10.3762/bjnano.10.120

• , there is a blue-shift of the peak wavelength when the observation angle is increased. An equation for the observed wavelength as a function of the observation angle is proposed. Keywords: observation angle; photonic crystal; reverse nanoimprint lithography; structural color; visualized sensor