Exploiting ITO colloidal nanocrystals for ultrafast pulse generation

Abstract

Dynamical materials that capable of responding to optical stimuli have always been pursued for designing novel photonic devices and functionalities, of which the response speed and amplitude as well as integration adaptability and energy effectiveness are especially critical. Here we show ultrafast pulse generation by exploiting the ultrafast and sensitive nonlinear dynamical processes in tunably solution-processed colloidal epsilon-near-zero (ENZ) transparent conducting oxide (TCO) nanocrystals (NCs), of which the potential respond response speed is >2 THz and modulation depth is ~23% pumped at ~0.7 mJ/cm2, benefiting from the highly confined geometry in addition to the ENZ enhancement effect. These ENZ NCs may offer a scalable and printable material solution for dynamic photonic and optoelectronic devices.

References in corpus (6)

• Optical modulators with two-dimensional layered materials
• Enhanced nonlinear refractive index in epsilon-near-zero materials
• Epsilon-Near-Zero Al-Doped ZnO for Ultrafast Switching at Telecom Wavelengths: Outpacing the Traditional Amplitude-Bandwidth Trade-Off
• Negative refraction in Al:ZnO/ZnO metamaterial in the near-infrared
• Enhanced third harmonic generation from the epsilon-near-zero modes of ultrathin films
• Low-damping epsilon-near-zero slabs: nonlinear and nonlocal optical properties

Cited by in corpus (6)

• Advances in ultrafast plasmonics
• An electronic-based model of the optical nonlinearity of low-electron-density-Drude materials
• Self-interaction of ultrashort pulses in an epsilon-near-zero nonlinear material at the telecom wavelength
• The electronic and thermal response of low electron density Drude materials to ultrafast optical illumination
• Understanding the nonlinear optical response of epsilon near zero materials in the time-domain
• Observation of SQUID-like behavior in fiber laser with intra-cavity epsilon-near-zero effect