Directional optical switching and transistor functionality using optical parametric oscillation in a spinor polariton fluid

Przemyslaw Lewandowski, Samuel M.H. Luk, Chris K.P. Chan, P. T. Leung, Nai-Hang Kwong, Rudolf Binder, Stefan Schumacher

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Over the past decade, spontaneously emerging patterns in the density of polaritons in semiconductor microcavities were found to be a promising candidate for all-optical switching. But recent approaches were mostly restricted to scalar fields, did not benefit from the polariton’s unique spin-dependent properties, and utilized switching based on hexagon far-field patterns with 60 beam switching (i.e. in the far field the beam propagation direction is switched by 60). Since hexagon far-field patterns are challenging, we present here an approach for a linearly polarized spinor field that allows for a transistor-like (e.g., crucial for cascadability) orthogonal beam switching, i.e. in the far field the beam is switched by 90. We show that switching specifications such as amplification and speed can be adjusted using only optical means.

Original languageEnglish (US)
Pages (from-to)31056-31063
Number of pages8
JournalOptics Express
Volume25
Issue number25
DOIs
StatePublished - Dec 11 2017

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optical switching
polaritons
far fields
transistors
beam switching
oscillations
hexagons
fluids
specifications
emerging
scalars
propagation

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Directional optical switching and transistor functionality using optical parametric oscillation in a spinor polariton fluid. / Lewandowski, Przemyslaw; Luk, Samuel M.H.; Chan, Chris K.P.; Leung, P. T.; Kwong, Nai-Hang; Binder, Rudolf; Schumacher, Stefan.

In: Optics Express, Vol. 25, No. 25, 11.12.2017, p. 31056-31063.

Research output: Contribution to journalArticle

Lewandowski, Przemyslaw ; Luk, Samuel M.H. ; Chan, Chris K.P. ; Leung, P. T. ; Kwong, Nai-Hang ; Binder, Rudolf ; Schumacher, Stefan. / Directional optical switching and transistor functionality using optical parametric oscillation in a spinor polariton fluid. In: Optics Express. 2017 ; Vol. 25, No. 25. pp. 31056-31063.
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