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-   -   what's the recoil energy in optical lattice? (http://www.physicsforums.com/showthread.php?t=370440)

 Jason Wang Jan18-10 02:09 AM

what's the recoil energy in optical lattice?

Will anyone give me an explanation helping me understanding it?

 Redbelly98 Jan18-10 01:11 PM

Re: what's the recoil energy in optical lattice?

Welcome to Physics Forums.

The recoil energy is p2/2m, where p=h/λ is the momentum of a lattice photon and m is the mass of an atom or ion trapped in the lattice.

The recoil energy is the kinetic energy an atom (or ion) would have after emitting a photon, if initially at rest.

 Rajini Jan29-10 08:01 AM

Re: what's the recoil energy in optical lattice?

Hi,
Recoil energy E=Mv2/2=p2/(2M)=Ep2/(2Mc2)=($$\hbar$$k)2/(2M).
M=mass of something (nucleus, atom, ion, etc), which emits photons.
v=recoil velocity due to emission of photons.
p=momentum.
Ep= Energy of the emitted photons.
c=velocity of light in vacuum.
k=wave vector.

 Jason Wang Nov24-11 08:57 PM

Re: what's the recoil energy in optical lattice?

Quote:
 Quote by Redbelly98 (Post 2537355) Welcome to Physics Forums. The recoil energy is p2/2m, where p=h/λ is the momentum of a lattice photon and m is the mass of an atom or ion trapped in the lattice. The recoil energy is the kinetic energy an atom (or ion) would have after emitting a photon, if initially at rest.

I see, Thanks a lot

 Jason Wang Nov24-11 08:57 PM

Re: what's the recoil energy in optical lattice?

Quote:
 Quote by Rajini (Post 2554009) Hi, Recoil energy E=Mv2/2=p2/(2M)=Ep2/(2Mc2)=($$\hbar$$k)2/(2M). M=mass of something (nucleus, atom, ion, etc), which emits photons. v=recoil velocity due to emission of photons. p=momentum. Ep= Energy of the emitted photons. c=velocity of light in vacuum. k=wave vector.

It helps

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