Tag Archives: Nonlinear crystals

Parametric conversion in semi-classical optics

Poster-paper at the Aharonov Bohm and Berry Phase Anniversary (ABB 50/25) Conference at Bristol, 14-15 December 2009: Trevor W Marshall & Max K Wallis (Cardiff University) The rainbow of down-converted radiation emerging from a laser-pumped nonlinear crystal has a natural … Continue reading

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Counter-examples to the photon model – striking at fundamentals of the beleaguered string theory

Scientists interested in micromanipulation predict that certain micron-sized particles experience a backward force from a forward propagating light beam.  Such a prediction is inexplicable on the photon model of light.  The Chinese group’s paper uses the Lorentz-Mie expansion of the electromagnetic … Continue reading

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Challenge to fans of QM ‘photons’

Describing light as ‘photons’ is of course just a model; QM is just a series of calculation procedures (algorithms), Schrödinger’s “Cat” paradox showed it to be self-contradictory, which remains unresolved, though fans of QM indulge in semantics (‘apparent’ paradox – … Continue reading

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Light as Waves versus Quantum Mechanics of Photons

Three challenges to fans of QM ‘photons’ ** Afshar’s 2-slit experiment: shows light ‘photons’ propagate as waves – discrete signals are created by the detection process (photo-electric effect) ** Down-conversion in crystals: the rainbow from a laser beam passing through … Continue reading

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