111 citations · 202 across the 5 of their papers we have counts for
5 papers
Reversible tuning of nanowire quantum dot to atomic transitions
Rubayet Al Maruf, Sreesh Venuturumilli, Divya Bharadwaj +10
Quantum dots embedded in semiconductor photonic nanowires (NW-QDs) can deterministically produce single-photons and entangled photon pairs at high repetition rates. These photons c…
Spin-Preserving Chiral Photonic Crystal Mirror
Behrooz Semnani, Jeremy Flannery, Rubayet Al Maruf +1
Chirality refers to a geometric phenomenon in which objects are not superimposable on their mirror image. Structures made of nano-scale chiral elements can display chiroptical effe…
Experimental Characterization of Ultrafast, Tunable and Broadband Optical Kerr Nonlinearity in Graphene
Siddharatha Thakur, Behrooz Semnani, Safieddin Safavi-Naeini +1
In this study we systematically measure the near-infrared spectral dependence, the sub-picosecond temporal evolution and pulse-width dependence of the effective Kerr coefficient ($…
Anomalous optical saturation of low-energy Dirac states in graphene and its implication for nonlinear optics
Behrooz Semnani, Roland Jago, Safieddin Safavi-Naeini +3
We reveal that optical saturation of the low-energy states takes place in graphene for arbitrarily weak electromagnetic fields. This effect originates from the diverging field-indu…
Nonlinear quantum optical properties of graphene: the role of chirality and symmetry
Behrooz Semnani, Amir Hamed Majedi, Safieddin Safavi-Naeini
We present a semiclassical theory of linear and nonlinear optical response of graphene. The emphasis is placed on the nonlinear optical response of graphene from the standpoint of…