Publication

Real-Time Observation of Ultrafast Thermo-Optic Nonlinearity in Time-Varying Effective Epsilon-Near-Zero Media

2025

Abstract

Thermo-optic effects, especially the thermo-optic nonlinearity, are conventionally considered to be slow and detrimental in on-chip integration. Here, we challenge this conception by presenting a real-time observation of the ultrafast thermo-optic nonlinearity in time-varying effective epsilon-near-zero (ENZ) media. The results of this work might enable the design of integration-compatible near-terahertz ultrafast thermo-optic modulators with a low intensity demand.

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2025

Abstract

Official source

Related concepts (9)

Integrated circuit

An integrated circuit or monolithic integrated circuit (also referred to as an IC, a chip, or a microchip) is a set of electronic circuits on one small flat piece (or "chip") of semiconductor material, usually silicon. Large numbers of miniaturized transistors and other electronic components are integrated together on the chip. This results in circuits that are orders of magnitude smaller, faster, and less expensive than those constructed of discrete components, allowing a large transistor count.

Very Large Scale Integration

Very large-scale integration (VLSI) is the process of creating an integrated circuit (IC) by combining millions or billions of MOS transistors onto a single chip. VLSI began in the 1970s when MOS integrated circuit (Metal Oxide Semiconductor) chips were developed and then widely adopted, enabling complex semiconductor and telecommunication technologies. The microprocessor and memory chips are VLSI devices. Before the introduction of VLSI technology, most ICs had a limited set of functions they could perform.

System on a chip

A system on a chip or system-on-chip (SoC ,ˈɛsoʊsiː; pl. SoCs ,ˈɛsoʊsiːz) is an integrated circuit that integrates most or all components of a computer or other electronic system. These components almost always include on-chip central processing unit (CPU), memory interfaces, input/output devices, input/output interfaces, and secondary storage interfaces, often alongside other components such as radio modems and a graphics processing unit (GPU) – all on a single substrate or microchip.

Related publications (1)

Real-Time Observation of Ultrafast Thermo-Optic Nonlinearity in Time-Varying Effective Epsilon-Near-Zero Media

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Design and analysis techniques for dynamic current mirrors