Colored image produced with guided-mode resonance filter array

Abstract

A method to reproduce colored images with a guided-mode resonance filter (GMRF) array is presented in this Letter. Because of their excellent characteristics, monochromatic light of the three primary colors with high purity can be achieved by using GMRF structures. Moreover, the primary colors are obtained without changing other GMRF parameters except the period, which could be realized easily with laser direct writing technology. The result shows that a colored image with high resolution and verisimilitude can be reproduced.

Fabrication of highly efficient resonant structure assisted ultrathin artificially stacked Ag/ZnS/Ag multilayer films for color filter applications

“…These filters have been regarded as an indispensable component in a variety of applications, such as fluorescence imaging, multi-spectral sensors, display devices and light emitting diodes. [1][2][3][4] The current research on the color filters is mainly focused on developing a smaller, faster and lower power design as compared to the commonly accessible designs. There are various important factors that played a key role in color filters in which, the most important aspect of color filters is the efficient use of light and enhancement of color saturation.…”

Normal incidence filters using symmetry-protected modes in dielectric subwavelength gratings

“…Optical resonators with high quality-factor (Q) modes play crucial roles in modern photonic technologies, with applications including sensing12, filtering3, display technologies4, lasers, and optical interconnects5. The p lanar design has attracted significant research attention because of benefits such as easy fabrication and its potential for on-chip integration with other optoelectronic components678.…”

Waveguide-metal–dielectric bi-layer gratings for reflective filtering and color security

“…With increase of d f from 0 up to 0.04 m, high sideband reflections at ∼0.7-0.8 m are well suppressed, but an unneeded peak appears at ∼0.6-0.7 m arising from film interference [5,14]. So a compromise between sideband reflection and redundant peak must be made so as to obtain better filtering and color aspect, and an optimized value of d f = 0.023 m is ultimately found.…”

“…Moreover, the properties of filtering and coloration for metal SWGs [10,11] as well as 2D arrays of both nanoholes and nanodisks on surface of silicon [12,13] are studied. Recently, Wang et al [14] presented a concept of reproducing colored images by GMR SWGs and Lochbihler demonstrated a SWG structure for coloring by reflectance capable of reproducing colored images [15].…”