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The role of metastable states in circumventing laser pulse jitters in multi-step laser excitation of high-lying Rydberg and autoionizing states is discussed. A case study is presented where step-wise excitation of 3d4d (3)G(3,4,5) states of Ca is achieved despite a large jitter between the laser pulses
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What is the definition of Metastable state in laser?
Metastable state in laser is the intermediate state between the e2 and e1 where the excited electron can stay for a comparably long time.
What radioactive decay processes have no transmutation?
Only gamma, it is the process by which a metastable excited nuclear isomer of an isotope relaxes down to the ground state of the same isotope. Some metastable states must undergo multiple gamma decays through less excited metastable states to reach the ground state.
Why metastable state is more stable then excited state?
because according to energy profile,metastable state is lying lower than excited state.as we know that states of lower energies are more stable than states of higher energy.so it is more stable than excited state.
What is metastable state of plasma?
Excited state of an atom, nucleus, or other system that has a longer lifetime than the ordinary excited states and generally has a shorter lifetime than the ground state. It can be considered a temporary energy trap or a somewhat stable intermediate stage of a system of which the energy may be lost in discrete amounts. The many photochemical reactions of mercury are a result of the metastable state of mercury atoms, and radiation from metastable oxygen atoms accounts for the characteristic green colour of the aurora borealis and aurora australis.
What kind of flip flop has no invalid or unused state?
None, all flip flops have a small probability of entering a metastable invalid state.
Why ruby laser is a solid state laser?
laser production is done by a solid state active working material.
Can water stay liquid at subzero temperatures if you had enough pressure?
The sub zero liquid state is an achievable metastable state with an energy level between that of the gas and solid. Subzero water in this metastable state is said to be super-cooled. In the temperature range 0c to -40c the supercooling phenomenon is prevalent. Reference: See the related link below.
What is the difference between solid state laser and semiconductor laser?
LASER is Light amplification by stimulated emission of radiation. As far as I have understood, Solid State laser is a macroscopic form of diode laser. Thus a small semiconductor diode is similar to a solid state laser except for the mechanism of lasing and size.
How electrons can stay in the metastable state for longer time?
To leave a state and decay to a lower energy state, the electron must lose energy. In metastable states, there are no lower energy state to go to that have strongly allowed transitions (that is simple emission of a photon, diplole transititions) and so the electron must decay by slower, less probable means (like two photon decay, magnetic dipole decay). Hence, it stays in that state for longer.
Why are some isotopes when written out end in m. I am doing some research for a writing project on isotopes and I am confused because I have found there's Barium-127 but there's also Barium-127m?
I think it stands for metastable - Metastable state is an excited state of an atom or other system with a longer lifetime than the other excited states.
What is metastable ion in mass spectroscopy?
An ion that is formed with sufficient excitation to dissociate spontaneously during its journey from source to detector is called metastable ion.
What is semiconductor laser?
A semiconductor laser is a type of laser which utilizes a semiconductor as its Photon source, rather than a gas (Argon, CO2, Etc...) laser which uses inert gas as an active medium. Many physicists and engineers consider a semiconductor laser a type of "Solid-State" or "Two-State" LASER.
