Modular assembly of optical nanocircuits

Abstract

A key element enabling the microelectronic technology advances of the past decades has been the conceptualization of complex circuits with versatile functionalities as being composed of the proper combination of basic 'lumped' circuit elements (for example, inductors and capacitors). In contrast, modern nanophotonic systems are still far from a similar level of sophistication, partially because of the lack of modularization of their response in terms of basic building blocks. Here we demonstrate the design, assembly and characterization of relatively complex photonic nanocircuits by accurately positioning a number of metallic and dielectric nanoparticles acting as modular lumped elements. The nanoparticle clusters produce the desired spectral response described by simple circuit rules and are shown to be dynamically reconfigurable by modifying the direction or polarization of impinging signals. Our work represents an important step towards extending the powerful modular design tools of electronic circuits into nanophotonic systems.

Electrochemically Programmable Plasmonic Antennas

“…[40][41][42][43][44] The gap load and antenna arms each are modeled as impedance elements, and together, they form a closed parallel circuit (Figure 3a). The antenna arms are modeled as series LC elements and 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 7 possess an inductance α and capacitance β.…”

Electric‐Field‐Controlled Antiferromagnetic Spintronic Devices

“…The large carrier modulation could affect the magnetic properties of antiferromagnetic materials to achieve antiferromagnetic spintronic devices. In addition, ionic liquid gating can induce ionic migration in oxides, such as oxygen or hydrogen, [87,88] which could achieve ionic modulation of magnetic properties, particularly in oxides.…”

Plasmonic circuits for manipulating optical information

“…The correspondence between metal and dielectric particles and electronic components has been demonstrated using a scanning probe tip to assemble together different optical filter combinations [206]. That the optical resonances of metal nanoparticles can be altered in the presence of other metals or dielectrics is well known so it is not surprising that optical filters can be created in this way.…”