Andon A. Rangelov

Planar achromatic multiple beam splitter by adiabatic light transfer

We introduce a novel achromatic and robust scheme for n-fold multiple beam splitting based on adiabatic light transfer in a planar geometry of coupled waveguides (WGs). The concept is experimentally verified for a one-to-three beam splitter by using a reconfigurable light-induced WG structure at two operating wavelengths. The demonstrated planar-type achromatic beam splitter opens new opportunities for the realization of ultra-high bandwidth on-chip photonic devices.

Wireless adiabatic power transfer

We propose a technique for efficient mid-range wireless power transfer between two coils, by adapting the process of adiabatic passage for a coherently driven two-state quantum system to the realm of wireless energy transfer. The proposed technique is shown to be robust to noise, resonant constraints, and other interferences that exist in the neighborhood of the coils.

Complete population transfer in a three-state quantum system by a train of pairs of coincident pulses

A technique for complete population transfer between the two end states

Variable ultrabroadband and narrowband composite polarization retarders

\ket{1}

Stimulated Raman adiabatic passage analogues in classical physics

and

Population trapping in three-state quantum loops revealed by Householder reflections

\ket{3}

Mid-range adiabatic wireless energy transfer via a mediator coil

of a three-state quantum system with a train of

Rapid adiabatic passage without level crossing

N

Tunable bandwidth optical rotator

pairs of resonant and coincident pump and Stokes pulses is introduced. A simple analytic formula is derived for the ratios of the pulse amplitudes in each pair for which the maximum transient population

Robust and broadband frequency conversion in composite crystals with tailored segment widths and χ (2) nonlinearities of alternating signs

P_2(t)