maser
Coherent microwave source
A maser is a device that amplifies or generates coherent microwave radiation through stimulated emission—the microwave equivalent of a laser.
Masers preceded lasers historically and remain important in radio astronomy and precision timekeeping.
The word is an acronym for "microwave amplification by stimulated emission of radiation." Hydrogen masers provide the most stable frequency standards available.
Increase in intensity
- coherentLogically connected throughout
- emissionDischarged substance or act
- radiationEnergy propagation through space
- cavityEmpty space within
resonator · oscillator · quantum · ammonia · hydrogen · ruby · gas · solid-state
Of elemental particles
- timekeepingMeasuring duration's passage
- precisionAccuracy of measurement
- frequencyRate of recurrence
- hydrogenSimplest atomic element
synchronization · standards · stability · accuracy · calibration · oscillator · cesium · measurement
Between celestial bodies
- cosmicPertaining to the universe
- hydroxyl-OH functional group
- waterClear essential liquid
- methanolToxic one-carbon alcohol
star-forming · nebula · radio · emission · galactic · extragalactic · brightness · astronomical
Increase in intensity
- receiverOne who accepts transmission
- deep-spaceRegions beyond nearby planets
- communicationExchanging ideas or information
- transmissionSending of information
antenna · satellite · bandwidth · sensitivity · NASA · Voyager · cryogenic · parametric
amplification
Increase in intensity
- coherentLogically connected throughout
- emissionDischarged substance or act
- radiationEnergy propagation through space
cavity · resonator · oscillator · quantum · ammonia · hydrogen · ruby · gas · solid-state · paramagnetic
atomic
Of elemental particles
- timekeepingMeasuring duration's passage
- precisionAccuracy of measurement
- frequencyRate of recurrence
hydrogen · synchronization · standards · stability · accuracy · calibration · oscillator · cesium · measurement · second
interstellar
Between celestial bodies
methanol · star-forming · nebula · radio · emission · galactic · extragalactic · brightness · astronomical · spectral
amplification
Increase in intensity
- receiverOne who accepts transmission
- deep-spaceRegions beyond nearby planets
- communicationExchanging ideas or information
transmission · antenna · satellite · bandwidth · sensitivity · NASA · Voyager · cryogenic · parametric
- Laserscoherence, cavity resonator, LASIK
- radio astronomyradio telescopes, radio telescope, radio waves, radio signals, radio spectrum
- Radio Sourcespulsar, quasar, magnetar, Crab Nebula, quasars
- RF devicesmagnetron, power amplifier, preamplifier, preamp, CFA
- microwave componentsmagnetron, waveguide, cavity resonator, circulator, isolator
- microwavesturntable, defrost, magnetron, reheat, power level