Thin-film coatings can be essential to obtaining the desired performance from an optical component. Stuart Allan describes the types available and provides purchasing advice. Optical thin-film ...

Figure 1 Comparison of general GPT models (a) and proposed OptoGPT model (b). (c) Convert different types of responses to reflection and transmission spectrum. (d) Illustration of structure ...

Marko Lončar’s group at SEAS builds isolator in a lithium niobate-based optical chip. Micrograph of electro-optic isolator chip on thin-film lithium niobate. An optical isolator created at the Harvard ...

The eyes of moths, which allow them to see well at night, are also covered with a water-repellent, anti-reflective coating that makes their eyes among the least reflective surfaces in nature.

The high-tech company Phytonics, a spinoff from the Karlsruhe Institute of Technology (KIT), gets inspired by plants: The Phytonics film with micro- and nanostructures modeled on rose petals provides ...