Researchers at Hunan Normal University in Changsha, China, have achieved a significant breakthrough in acoustic technology by creating a groundbreaking device capable of generating a laser beam composed of sound particles.
This innovative sound laser, which marks a major advancement in the field, is reported to be ten times more powerful than any previous device utilizing similar technology. Unlike traditional lasers that emit photons in a narrow light beam, the new laser emits sound particles known as phonons.
Functioning as the acoustic counterpart to optical lasers, the sound laser demonstrates remarkable capabilities in transmitting information at high speeds, showcasing its potential applications across various domains, from biomedicine to underwater monitoring.
The device operates by levitating a minuscule bead within an optical tweezer composed of two light beams. This bead, comparable in size to a bacterium, undergoes controlled vibrations within a reflective cavity, amplifying the release of phonons.
Despite its promising potential, the technology is still in its nascent stage and requires further development before practical implementation. Nonetheless, the researchers envision a wide array of applications for the phonon laser, including ultrasound transmission, atmospheric monitoring, and biomedical diagnosis.
The findings of this groundbreaking research, outlined in the study titled “Giant Enhancement of Higher-Order Harmonics of an Optical-Tweezer Phonon Laser,” underscore the device’s status as a unique and versatile tool with far-reaching implications across multiple fields.
