John G Rarity

Title: John G Rarity: Innovator in Colloidal Photonic Crystals

Introduction

John G Rarity is a notable inventor based at QinetiQ Malvern in Great Britain. He has made significant contributions to the field of photonic crystals, particularly through his innovative methods of growing robust large area colloidal photonic crystals. His work has implications for various applications in optics and materials science.

Latest Patents

John G Rarity holds a patent for a method of growing robust large area colloidal photonic crystals and the devices produced thereby. The patent describes a suspension of monosized colloidal spheres that is subjected to a composite shear by applying a sequential set of shearing forces. This process allows the crystalline layers within the colloid to experience shearing forces in both x and y directions, which encourages the formation of a single face-centered-cubic structure rather than a twinned structure. Additionally, the method may involve using a dispersion medium capable of undergoing a controllable phase change from a liquid to a solid phase, ultimately fixing the crystal into a single face-centered cubic structure.

Career Highlights

Throughout his career, John G Rarity has been associated with QinetiQ Limited, where he has focused on advancing the field of photonic crystals. His innovative approach and dedication to research have positioned him as a key figure in this area of study.

Collaborations

John has collaborated with notable colleagues, including Richard M Amos and Paul Richard Tapster. These collaborations have likely contributed to the advancement of his research and the successful development of his patented methods.

Conclusion

John G Rarity's work in colloidal photonic crystals exemplifies the innovative spirit of modern inventors. His contributions continue to influence the field and pave the way for future advancements in materials science.