For battery-powered circuits, it is easy to build an ultralow-current crystal oscillator designed around a 32.768-kHz crystal. This crystal is common for real-time-clock circuits. Because these ...

The idea for this crystal tester circuit sprung out of the need of testing a large number of oscillator crystals lying unused in a big hobby box. testing the crystals one by one without the ...

Appropriately cut quartz crystals can be used as high-quality electromechanical resonators. Their piezoelectric properties (voltage across the crystal deforms it; deforming the crystal generates a ...

Photonic circuits, which manipulate light to perform various computational tasks, have become essential tools for a range of advanced technologies—from quantum simulations to artificial intelligence.

A fast and effective method for optimizing photonic crystal nanocavities has been developed by scientists. The method has led to the design of new-generation structures that may advance the future of ...

Unlike many people, Eli Yablonovitch does not believe that his invention - the photonic crystal - should be used to make all-optical circuits. He tells Nadya Anscombe why his new company will ...

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