TAILIEUCHUNG - Photodiodes World Activities in 2011 Part 3

Tham khảo tài liệu 'photodiodes world activities in 2011 part 3', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Photon Emitting Absorption and Reconstruction of Photons 51 interaction of light field with electron or atomic systems that demonstrated anti-bunching light the most promising is the electrically driven single-photon source Zhiliang Yuan et al. 2002 . In their experiment the HBT measurement demonstrated indeed sub-Poissonian photon statistics and anti-bunching. Most of the experiments reported to date demonstrate antibunching using radiation field interaction with atomic or ion system which limit the number of the photon emitting. Is there any reason that from the property of the photons by themselves that should result in antibunching Why the photons can distinguish each other Destructive two-photon interference demonstrated photon antibunching with calculated g 2 0 1. Actually they obtained both the bunching and antibunching by controlling the phase difference between two input beams so that the production process is difficult to understanding by a naive photon picture Kaoshi Matsuoka 1996 . To answer these questions one should also consider the physical observables that are quantized wavevectors or polarization vectors. Electromagnetic fields never refuse to interfere with each other. There are two cases that should be considered. One is the coherently combination the other is the interference coherently. If we consider the monochromatic wave as single mode the two linearly polarization orthogonal each other to form a new state only when their wave vectors lay on line. For the linearly polarized light with wave vector in different direction in same plan they can coherently interfere to produce fringes when across each other while keeps their independent so that keep their polarization and wave vector unchanged after crossover. However if these waves topologically charged they can combine to share a same angular momentum. The optical vortices formed under strong electromagnetic interaction where the wavevectors topologically combined. The optical vortex with .

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