Rewritable nanoscale oxide photodetector

Rewritable nanoscale oxide photodetector

Nanophotonic devices seek to generate, guide, and/or detect light using structures whose nanoscale dimensions are closely tied to their functionality.1,2 Semiconducting nanowires, grown with tailored optoelectronic properties, have been successfully placed into devices for a variety of applications.3–5 However, the integration of photonic nanostructures with electronic circuitry has always been...

Nanoscale conducting oxide PlasMOStor.

We experimentally demonstrate an ultracompact PlasMOStor, a plasmon slot waveguide field-effect modulator based on a transparent conducting oxide active region. By electrically modulating the conducting oxide material deposited into the gaps of highly confined plasmonic slot waveguides, we demonstrate field-effect dynamics giving rise to modulation with high dynamic range (2.71 dB/μm) and low w...

A nanoscale shape memory oxide.

Stimulus-responsive shape-memory materials have attracted tremendous research interests recently, with much effort focused on improving their mechanical actuation. Driven by the needs of nanoelectromechanical devices, materials with large mechanical strain, particularly at nanoscale level, are therefore desired. Here we report on the discovery of a large shape-memory effect in bismuth ferrite a...

Rewritable Groups

A group G is said to have the n-rewritable property Qn if for all elements g1, g2, . . . , gn ∈ G, there exist two distinct permutations σ, τ ∈ Symn such that gσ(1)gσ(2) · · · gσ(n) = gτ(1)gτ(2) · · · gτ(n). We show here that if G satisfies Qn, then G has a characteristic subgroup N such that |G : N | and |N ′| are both finite and have sizes bounded by functions of n. This extends the result of...

Nanoscale oxide patterns on Si (100) surfaces