Single Photon Interference
Δημοσιεύτηκε στις 13 Μαρ 2013
What
happens when single photons of light pass through a double slit and are
detected by a photomultiplier tube? In 1801 Thomas Young seemed to
settle a long-running debate about the nature of light with his double
slit experiment. He demonstrated that light passing through two slits
creates patterns like water waves, with the implication that it must be a
wave phenomenon.
However, experimental results in the early
1900s found that light energy is not smoothly distributed as in a
classical wave, rather it comes in discrete packets, called quanta and
later photons. These are indivisible particles of light. So what would
happen if individual photons passed through a double slit? Would they
make a pattern like waves or like particles?
happens when single photons of light pass through a double slit and are
detected by a photomultiplier tube? In 1801 Thomas Young seemed to
settle a long-running debate about the nature of light with his double
slit experiment. He demonstrated that light passing through two slits
creates patterns like water waves, with the implication that it must be a
wave phenomenon.
However, experimental results in the early
1900s found that light energy is not smoothly distributed as in a
classical wave, rather it comes in discrete packets, called quanta and
later photons. These are indivisible particles of light. So what would
happen if individual photons passed through a double slit? Would they
make a pattern like waves or like particles?
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