The origin of black and white coloration of the Asian tiger mosquito Aedes albopictus (Diptera: Culicidae)

• Manuela Rebora,
• Gianandrea Salerno,
• Silvana Piersanti,
• Alexander Kovalev and
• Stanislav N. Gorb

Beilstein J. Nanotechnol. 2023, 14, 496–508, doi:10.3762/bjnano.14.41

• ) reflection spectrum (illumination and observation at 45°). No correction on the observation angle was performed. Adults of Aedes albopictus under a stereomicroscope. Female (a) and male (b) typically characterised by the presence of white and black areas on their body. (c) Detail of the abdomen and thorax of

Growth dynamics and light scattering of gold nanoparticles in situ synthesized at high concentration in thin polymer films

• Corentin Guyot,
• Philippe Vandestrick,
• Ingrid Marenne,
• Olivier Deparis and
• Michel Voué

Beilstein J. Nanotechnol. 2019, 10, 1768–1777, doi:10.3762/bjnano.10.172

• beam (diameter 5 mm) on the sample. (Left) Undoped polymer film. (Right) Annealed PVA matrix embedding in situ synthesized AuNPs (incidence angle: 45°, observation angle: 0°, 12 mW HeNe laser at λ = 632.8 nm). Experimental BRDF measurements at θi = −20°and λ = 570 nm. (Left) Non-annealed sample. (Right

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

• attracted great interest because of a possible application in visual sensors. The appearance of a photonic crystal is mainly influenced by the optical properties, structural parameters and the observation angle. In this work, an angle-sensitive photonic crystal with nanoscale gratings was fabricated through

• , 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

• ; Introduction Photonic crystals have been extensively investigated in recent years because of their potential application in visual sensors [1]. Much attention has been paid to photonic crystals the reflection wavelength of which changes with the observation angle [2]. The photonic crystals can exhibit