Mechanical oscillations cause iron to become transparent to gamma rays

Iron nuclei can be made transparent to gamma rays that they would normally absorb using a new technique called “acoustically induced transparency” (AIT).  This feat was achieved by physicists in the US and Russia, who vibrated an iron Mössbauer absorber using a piezoelectric transducer. The researchers believe the effect could help to control the emission of radiation from nuclei, allowing more accurate atomic clocks and other quantum optical devices to be created. The technique could even be used to slow the passage of gamma rays through a material.

The new effect is reminiscent of electromagnetically induced transparency (EIT), which involves light at much lower optical frequencies than gamma rays. In general, EIT is achieved by using light at one frequency to manipulate the electronic energy levels in an atom in a way that affects its ability to interact with light at another frequency. EIT has been used to produce spectrally pure light in lasers and frequency standards in atomic clocks. But perhaps the most spectacular use of EIT is to slow light to a temporary halt in a medium before letting it loose again.

Keep reading

Author: HP McLovincraft

Seeker of rabbit holes. Pessimist. Libertine. Contrarian. Your huckleberry. Possibly true tales of sanity-blasting horror also known as abject reality. Prepare yourself.

Leave a Reply

Please log in using one of these methods to post your comment:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s