Coherent control of light interaction with graphene

Abstract

We report the experimental observation of all-optical modulation of light in a graphene film. The graphene film is scanned across a standing wave formed by two counter-propagating laser beams in a Sagnac interferometer. Through a coherent absorption process the on-axis transmission is modulated with close to 80% efficiency. Furthermore we observe modulation of the scattered energy by mapping the off-axis scattered optical signal: scattering is minimized at a node of the standing wave pattern and maximized at an antinode. The results highlight the possibility to switch and modulate any given optical interaction with deeply sub-wavelength films.

4 pages, 4 figures

References in corpus (4)

• Universal Dynamic Conductivity and Quantized Visible Opacity of Suspended Graphene
• Coherent Perfect Absorbers: Time-reversed Lasers
• Ultrafast all-optical switching via coherent modulation of metamaterial absorption
• Complete light absorption in graphene-metamaterial corrugated structures

Cited by in corpus (8)

• Fibre-optic metadevice for all-optical signal modulation based on coherent absorption
• Observation of gate-tunable coherent perfect absorption of terahertz radiation in graphene
• $\mathcal{P}\mathcal{T}$-Symmetric Coherent Perfect Absorber with Graphene
• Broadband Coherent Perfect Absorber with PT-Symmetric 2D-Materials
• Broadband and Wide-Angle Invisibility with PT-Symmetric 2D-Weyl Semimetal
• Coherent perfect absorption in resonant materials
• Two-dimensional materials and the coherent control of nonlinear optical interactions
• Broadband Omni-resonant Coherent Perfect Absorption in Graphene