Magnetic-optical transitions induced by twisted light in quantum dots

It has been theoretically predicted that light carrying orbital angular momentum, or twisted light, can be tuned to have a strong magnetic-field component at optical frequencies. We here consider the interaction of these peculiar fields with a semiconductor quantum dot and show that the magnetic int...

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Detalles Bibliográficos
Autores principales: Quinteiro, G.F., Reiter, D.E., Kuhn, T., Einarsson E., Hajim School of Engineering and Applied Sciences at the University of Rochester; Kurt J. Lesker Company; U.S. Department of Energy
Formato: CONF
Materias:
Dynamics
Electric fields
Gaussian beams
Magnetism
Nanocrystals
Nanostructures
Optical transitions
Optoelectronic devices
Band transitions
Light holes
Magnetic interactions
Optical frequency
Orbital angular momentum
Single pulse
Strong magnetic fields
Semiconductor quantum dots
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_17426588_v906_n1_p_Quinteiro
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
Descripción
Sumario:It has been theoretically predicted that light carrying orbital angular momentum, or twisted light, can be tuned to have a strong magnetic-field component at optical frequencies. We here consider the interaction of these peculiar fields with a semiconductor quantum dot and show that the magnetic interaction results in new types of optical transitions. In particular, a single pulse of such twisted light can drive light-hole-to-conduction band transitions that are cumbersome to produce using conventional Gaussian beams or even twisted light with dominant electric fields. © Published under licence by IOP Publishing Ltd.

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