Two Holograms in One Surface
Source: https://aph.caltech.edu/news/two-holograms-in-one-surface Parent: https://aph.caltech.edu/people/faraon
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Two Holograms in One Surface
December 11, 2017
Andrei Faraon, Assistant Professor of Applied Physics and Materials Science, graduate student Seyedeh Mahsa Kamali, and colleagues have figured out a way to encode more than one holographic image in a single surface without any loss of resolution. The team developed silicon oxide and aluminum surfaces studded with tens of millions of tiny silicon posts, each just hundreds of nanometers tall. Each nanopost reflects light differently due to variations in its shape and size, and based on the angle of incoming light. [Caltech story]
Written by
Trity Pourbahrami
Graduate student Seyedeh Mahsa Kamali
Professor Andrei Faraon