Spatial Characterization Of Two-Photon States - GAP-Optique
Spatial Characterization Of Two-Photon States - GAP-Optique
Spatial Characterization Of Two-Photon States - GAP-Optique
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
weight<br />
1<br />
0.6<br />
-180º<br />
-90º<br />
0º 90º 180º<br />
5.3. <strong>Spatial</strong> entanglement<br />
length<br />
0.2mm<br />
0.4mm<br />
1mm<br />
2mm<br />
angle<br />
Figure 5.3: The weight of the Gaussian mode in the oam decomposition for the Stokes<br />
photon has a maximum in the collinear configuration. In noncollinear configurations<br />
the probability of a Gaussian Stokes photon decreases as the length of the cloud<br />
increases. Table 5.1 lists the parameters used to generate this figure.<br />
weight angle<br />
1<br />
0.6<br />
0.2 Length 1.5 mm<br />
Figure 5.4: The probability of having a Gaussian Stokes photon is maximum in a<br />
collinear configuration independently of the cloud length. In the noncollinear cases<br />
the maximum appears at the length given by equation 5.20, in these configurations<br />
the probability of having a Gaussian Stokes photon changes drastically with the cloud<br />
length and the emission angle. Table 5.1 lists the parameters used to generate this<br />
figure.<br />
5.3 <strong>Spatial</strong> entanglement<br />
The spatial correlations between the generated photons inherit the angular<br />
dependence from the Stokes oam content. To explore this phenomena, this<br />
0º<br />
10º<br />
90º<br />
57