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Caltech’s new optical devices, evolved by algorithms and crafted via precise 3D printing, offer advanced light-manipulation for applications like augmented reality and cameras.

Researchers at Caltech have developed a groundbreaking technology that “evolves” optical devices and fabricates them using a specialized 3D printer. These devices, composed of optical metamaterials, gain their unique properties from nanometer-scale structures. This innovation could enable cameras and sensors to detect and manipulate light in ways previously impossible at such small scales.

The research was conducted in the lab of Andrei Faraon, the William L. Valentine Professor of Applied Physics and Electrical Engineering and was published in the journal Nature Communications.

A new method enables researchers to analyze magnetic nanostructures with a high resolution. It was developed by researchers at Martin Luther University Halle-Wittenberg (MLU) and the Max Planck Institute of Microstructure Physics in Halle.

The new method achieves a resolution of around 70 nanometers, whereas normal light microscopes have a resolution of just 500 nanometers. This result is important for the development of new, energy-efficient storage technologies based on spin electronics. The team reports on its research in the current issue of the journal ACS Nano.

Normal optical microscopes are limited by the wavelength of light and details below around 500 nanometers cannot be resolved. The new method overcomes this limit by utilizing the anomalous Nernst effect (ANE) and a metallic nano-scale tip. ANE generates an electrical voltage in a magnetic metal that is perpendicular to the magnetization and a .

Plant based fabric can help reduce exposure to oil based fabrics so there are less cancer risk with clothing. Washi is made many different ways but can be done even with paper pulp and also paper thread.


“The fabric is soft, resistant to water, and it is even washable,” said 61-year-old company president and granddaughter of the founder, Akemi Kawamura, describing the characteristics of washi jackets.

Japanese paper is cut thin and twisted into threads before being woven into fabrics with special machines. “It’s light and airy, so it’s warm in winter, but breathable and comfortable in the summer,” she said.