Stories
Slash Boxes
Comments

SoylentNews is people

posted by martyb on Wednesday April 04 2018, @06:24PM   Printer-friendly
from the If-a-person's-eardrum-was-this-size,-how-tall-would-the-person-be? dept.

Case Western Reserve University researchers make dynamic advances with new atomically thin device

Researchers at Case Western Reserve University are developing atomically thin "drumheads" able to receive and transmit signals across a radio frequency range far greater than what we can hear with the human ear. But the drumhead is tens of trillions times (10 followed by 12 zeros) smaller in volume and 100,000 times thinner than the human eardrum. The advances will likely contribute to making the next generation of ultralow-power communications and sensory devices smaller and with greater detection and tuning ranges.

[...] The work represents the highest reported dynamic range for vibrating transducers of their type. To date, that range had only been attained by much larger transducers operating at much lower frequencies—like the human eardrum, for example.

"What we've done here is to show that some ultimately miniaturized, atomically thin electromechanical drumhead resonators can offer remarkably broad dynamic range, up to ~110dB, at radio frequencies (RF) up to over 120MHz," Feng said. "These dynamic ranges at RF are comparable to the broad dynamic range of human hearing capability in the audio bands."

Electrically tunable single- and few-layer MoS2 nanoelectromechanical systems with broad dynamic range (open, DOI: 10.1126/sciadv.aao6653) (DX)


Original Submission

 
This discussion has been archived. No new comments can be posted.
Display Options Threshold/Breakthrough Mark All as Read Mark All as Unread
The Fine Print: The following comments are owned by whoever posted them. We are not responsible for them in any way.
  • (Score: 0) by Anonymous Coward on Wednesday April 04 2018, @10:57PM

    by Anonymous Coward on Wednesday April 04 2018, @10:57PM (#662675)

    Perhaps this is how the ancient Egyptians got the great pyramid to radiate pi?