Constraints on downconversion in atomically thick films
Spontaneous parametric downconversion (SPDC) has been predicted in atomically thick crystals, though not yet observed. In this work we uncover physical and experimental constraints of photon-pair generation in such planar nonlinear films with a free-space illumination/collection geometry. We measure the material nonlinear response of monolayer tungsten diselenide via second harmonic generation and subsequently calculate the expected SPDC efficiency from appropriate quantum-classical relations....[Show more]
|Collections||ANU Research Publications|
|Source:||Journal of the Optical Society of America B|
|01_Marini_Constraints_on_downconversion_2018.pdf||3.3 MB||Adobe PDF||Request a copy|
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