AP Physics HW Name: Photon Scattering and X
... shown above left. After the collision, the photon is shifted in wavelength by an amount Δ = 2h/mec,
and reversed in direction, as shown above right.
(a) Determine the energy in joules of the incident photon.
Chapter 8: Polarization • Introduction – Light is a transverse
... – Examples of scattering - blue sky, exhaled smoke appears white but
smoke rising from a lighted cigarette is blue.
– A linearly polarized incident on an air molecule. The orientation of
the electric field E s follows a dipole pattern such that E s , the Poynting
vector, S and the oscillating dipol ...
Topics covered in PH112 - Rose
... Parallel-axis theorem
Torque, moment arm, line of action of F
Newton’s second law in angular form
Work and rotational kinetic energy
Rolling bodies, KE in terms of center of mass
Angular momentum of a system of particles, and of a rigid body
Conservation of angular momentum
Simple harmonic motion: f ...
PPT | 345.5 KB - Joint Quantum Institute
... The technique may someday enable more compact and
convenient sources of entangled photon pairs than
presently available for quantum information applications
such as the distribution of "quantum keys" for encrypting
1 Polarization of Light
... Recall that Right circular polarization would yield +1 and Left, −1.
The average value of the polarization is then the difference of the probabilities pR − pL , of
the two states.
The probability of finding a Right circularly polarized photon is pR = |hR|xi|2 = hx|RihR|xi
and the probability of find ...
as a probability wave
... in some small volume is proportional to the square
of the amplitude of the wave’s electric field in that
• Postulate that light travels not as a stream of
photons but as a probability wave
• photons only manifest themselves when light
interacts with matter
• photons originate in the source th ...
Mar 11/02 Matter Waves
... • interference fringes still build up
• raises the question: if the photons move through the
apparatus one at a time, through which slit does the
• How does a given photon know that there is another
• Can a single photon pass through both slits and
interfere with itself?
... „MIMIC“ impact of photon beam by ionization loss due to focussed electron beam at several
MeV. High repetition rate possible at c.w. electron accelerators.
1 day of operation at MAMI mimicks 1 year operation at the ILC.
The Compton Effect, or Compton scattering – conclusive evidence
... nature of light in his discovery that X-rays scattered by carbon target atoms had a longer wavelength
than the original x-ray photons. The scattered x-rays had lost energy.
Where did the extra energy go? The energy lost by the x-ray photons, as evidenced by the photons’
increased wavelength, increas ...
... 1. Black body radiation
2. Photon-electron effect
3. Atomic line spectrum
4. Atomic stability
5. Specific heat of solids
Photon polarization is the quantum mechanical description of the classical polarized sinusoidal plane electromagnetic wave. Individual photon eigenstates have either right or left circular polarization. A photon that is in a superposition of eigenstates can have linear, circular, or elliptical polarization.The description of photon polarization contains many of the physical concepts and much of the mathematical machinery of more involved quantum descriptions, such as the quantum mechanics of an electron in a potential well, and forms a fundamental basis for an understanding of more complicated quantum phenomena. Much of the mathematical machinery of quantum mechanics, such as state vectors, probability amplitudes, unitary operators, and Hermitian operators, emerge naturally from the classical Maxwell's equations in the description. The quantum polarization state vector for the photon, for instance, is identical with the Jones vector, usually used to describe the polarization of a classical wave. Unitary operators emerge from the classical requirement of the conservation of energy of a classical wave propagating through media that alter the polarization state of the wave. Hermitian operators then follow for infinitesimal transformations of a classical polarization state.Many of the implications of the mathematical machinery are easily verified experimentally. In fact, many of the experiments can be performed with two pairs (or one broken pair) of polaroid sunglasses.The connection with quantum mechanics is made through the identification of a minimum packet size, called a photon, for energy in the electromagnetic field. The identification is based on the theories of Planck and the interpretation of those theories by Einstein. The correspondence principle then allows the identification of momentum and angular momentum (called spin), as well as energy, with the photon.