Terahertz wave generation from spontaneously formed nanostructures in silver nanoparticle ink
Abstract
We demonstrate terahertz pulse generation from silver nanoparticle ink, originally developed for printed electronics, under irradiation by femtosecond laser pulses. Using metal nanoparticle ink, metallic nanostructures can be easily made in a large area without lithographic techniques. Terahertz pulses were emitted from the baked ink, having spontaneously formed nanostructures of ∼100 nm. From the results of the baking temperature dependence and the polarization measurement, the terahertz generation is attributed to the nonlinear polarization induced by the enhanced local fields around these nanostructures. This study paves the way for the future development of terahertz emitters which have resonances in both the near-infrared light and the terahertz wave, by combining micrometer-scale structures drawn by an inkjet printer and nanometer-scale structures formed during the baking process.
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Nanoscale structuring of metal films enhances THz emission.
“subsequent investigations found enhanced THz emission due to nanoscale structuring, including with gratings175–177, randomly-distributed nanostructuring178–182, and precision lithographically-defined nanostructure arrays159,178 (Fig. 8a).”
From Ultrafast terahertz emission from emerging symmetry-broken materials (2023) · cites this paper as [181]
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References 27 · Cited by 51
- Authors
- Kato, K., Takano, K., Tadokoro, Y., & Nakajima, M.
- Affiliations
- Institute of Laser Engineering, The University of Osaka (JP)
- Corresponding author
- Kato, Kosaku
- Takano, Keisuke
- Tadokoro, Yuzuru
- Nakajima, Makoto
- Venue
- Optics Letters
- Publisher
- Optica Publishing Group
- Published
- 2016-04-29
- Volume
- 41
- Issue
- 9
- Pages
- 2125
- ISSN
- 0146-9592 (ISSN-L)
- 1539-4794
- OpenAlex
- W2345196499
- Cited by
- 51
- References
- 27
- Citations by year
- 2025: 2 · 2024: 3 · 2023: 12 · 2022: 8 · 2021: 8 · 2020: 8 · 2019: 4 · 2018: 1 · 2017: 3 · 2016: 2
- FWCI
- 1.54
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Optics Letters (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Ministry of Education, Culture, Sports, Science, and Technology (MEXT) (22109003)
- Japan Society for the Promotion of Science (JSPS) (14J01675, 25286063, 25287069, 26287060, 26600109)
- MEXT Photonics Advanced Research CenterProgram
- JSPS Asian CORE Program
- Research Foundation for Opto-Science and Technology
- Topics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Terahertz technology and applications
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Nanomaterials and Printing Technologies
- Physical Sciences › Engineering › Biomedical Engineering › Plasmonic and Surface Plasmon Research
- Keywords
- terahertz generation, silver nanoparticle ink, femtosecond laser irradiation, nonlinear polarization, local field enhancement, inkjet-printed electronics, terahertz sources, polarimetry
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