The Amazing Maser

While it has become a word, laser used to be an acronym: “light amplification by stimulated emission of radiation”. But there is an even older technology called a maser, which is the sa…

Hackaday
Unerwartete Strahlenpulse aus einem schwarzen Diamant. Physiker entdecken völlig neue Form der kollektiven Quantenreaktion. #Diamant #Maser #Superradianz #Physik #Edelstein
https://www.scinexx.de/news/physik/ueberraschende-strahlenpulse-aus-dem-diamant/
Strahlenpulse aus einem schwarzen Diamant

Edelstein als Pulslaser: Bei Experimenten mit einem Diamanten haben Physiker eine neue Form der Superradianz entdeckt – eine neuartige kollektive

scinexx | Das Wissensmagazin
"As an amplifier, it has a fantastic signal-noise ratio. The noise level is practically at the theoretical minimum level of zero."
#superlative #maser

"Two masers were in existence when this was written. It was necessary to build the second one so that it could check the first. No other instrument is accurate enough to test a maser.

During the tests the oscillation frequencies were compared with an accuracy of one part in 100 billion. Professor Townes states that this is probably the most accurate comparison or measurement of any two physical quantities that has ever yet been made."
https://www.worldradiohistory.com/Archive-Radio-Electronics/50s/1955/Radio-Electronics-1955-06.pdf
#maser #superlative

📡 Affordable, room-temperature maser created using LED technology

https://phys.org/news/2025-07-room-temperature-maser-technology.html

#technology #maser #sensors #electronics

Affordable, room-temperature maser created using LED technology

With the ability to detect and amplify extremely weak electromagnetic signals without adding additional noise, masers have many potential uses, including the production of more sensitive magnetic resonance body scanners, such as those used in airports.

Phys.org

NGC 2170 – de Engelnevel

NGC 2170 is een reflectienevel die ongeveer 2700 lichtjaar van ons is verwijderd in de richting van het sterrenbeeld Monoceros – Eenhoorn. De nevel maakt deel uit van Monoceros R2, een van de meest nabije massieve stervormingsgebieden tot de Zon.

https://www.kuuke.nl/ngc-2170-de-engelnevel/

#eenhoorn #engelnevel #maser #MoleculaireWolk #monoceros #NGC2170 #reflectienevel

NGC 2170 – de Engelnevel – Kuuke's Sterrenbeelden

NGC 2170 is een reflectienevel die ongeveer 2700 lichtjaar van ons is verwijderd in de richting van het sterrenbeeld Monoceros – Eenhoorn. De nevel maakt deel uit van Monoceros R2, een van de meest nabije massieve stervormingsgebieden tot de Zon.

Astronomers think they’ve found a plausible explanation of the Wow! signal

#maser #space #astronomy #wow #WowSignal

https://arstechnica.com/science/2024/08/was-the-wow-signal-actually-a-space-maser/

Astronomers think they’ve found a plausible explanation of the Wow! signal

Magnetars could zap clouds of atomic hydrogen, producing focused microwave beams.

Ars Technica
Famous 'Wow!' Signal Might Have Actually Been a Natural Space Laser

A super powerful space laser could be the source of a mysterious signal that has puzzled astronomers for nearly 50 years.

ScienceAlert