Laser drums for better computers: Manipulating materials with light
This article discusses the use of laser drums to manipulate materials at the atomic level, a breakthrough that could lead to better computers. Researchers are using ultrafast lasers to create mechanical pressure and strain in materials, altering their properties. By applying laser pulses, they can induce vibrations and create "phonons" (quanta of sound energy) that interact with electrons, potentially enabling new ways to control material properties. This technique has been used to create "laser drums" in thin films of metals like platinum and copper, demonstrating how light can manipulate matter to achieve desired functionalities, paving the way for advancements in computing and data storage.
Key Points
- Researchers are using ultrafast lasers to manipulate materials at the atomic level to create better computers.
- Laser pulses induce mechanical pressure and strain, altering material properties by generating "phonons."
- "Laser drums" have been created in thin films of metals like platinum and copper, demonstrating light-matter interaction.
- This technology could lead to new ways of controlling material properties for computing and data storage.
- The ability to manipulate matter with light opens avenues for developing advanced materials with desired functionalities.
Exam Facts
- Researchers are using ultrafast lasers, which can deliver pulses in femtoseconds (quadrillionths of a second).
- The technique involves creating "phonons," which are quanta of sound energy.
- Experiments have been conducted on thin films of platinum and copper.
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