Nonlocal effects in double fishnet metasurfaces nanostructured at deep subwavelength level as a path toward simultaneous sensing of multiple chemical analytes
Само за регистроване кориснике
2016
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Nanoplasmonic devices are among the most sensitive chemical sensors, with sensitivities reaching the single-molecule level. An especially convenient class of such sensors is that based on metasurfaces with subwavelength nanoholes, examples being extraordinary optical transmission arrays and double fishnet structures. Such structures ensure operation both in transmission and reflection mode and ensure high sensitivities and excellent coupling with external readout. In this paper we consider the possibility to tailor the response of aperture-based sensor structures by modifying the geometry of nanoholes at the deep subwavelength level through ensuring controlled use of nonlocal effects. We investigate the case where nonlocality is achieved by modifying the basic metamaterial fishnet structure (a metal-dielectric-metal sandwich with rectangular openings) by superposing additional subwavelength patterns, ensuring the appearance of new optical modes. The obtained unit cell superstructure wi...ll have multiple tailorable spectral peaks that will increase the selectivity at different wavelengths. The finite elements method was used for simulations of the proposed structures. As an example, we applied our results to the case of a benzene sensor, showing that its spectral properties and selectivity can be tuned by modifying geometry at a deep subwavelength scale. The obtained custom-designed spectral selectivity is convenient for multianalyte chemical sensing using a single structure.
Кључне речи:
Nanoplasmonics / Double fishnet metamaterials / Metasurfaces / Chemical sensing / Subwavelength apertures / Electromagnetic nonlocality / Surface plasmons polaritonsИзвор:
Photonics and Nanostructures-Fundamentals and Applications, 2016, 18, 36-42Издавач:
- Elsevier
Финансирање / пројекти:
- Микро, нано-системи и сензори за примену у електропривреди, процесној индустрији и заштити животне средине (RS-MESTD-Technological Development (TD or TR)-32008)
DOI: 10.1016/j.photonics.2015.12.003
ISSN: 1569-4410
WoS: 000371361500006
Scopus: 2-s2.0-84957715411
Институција/група
IHTMTY - JOUR AU - Tanasković, Dragan AU - Obradov, Marko AU - Jakšić, Olga AU - Jakšić, Zoran PY - 2016 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/1967 AB - Nanoplasmonic devices are among the most sensitive chemical sensors, with sensitivities reaching the single-molecule level. An especially convenient class of such sensors is that based on metasurfaces with subwavelength nanoholes, examples being extraordinary optical transmission arrays and double fishnet structures. Such structures ensure operation both in transmission and reflection mode and ensure high sensitivities and excellent coupling with external readout. In this paper we consider the possibility to tailor the response of aperture-based sensor structures by modifying the geometry of nanoholes at the deep subwavelength level through ensuring controlled use of nonlocal effects. We investigate the case where nonlocality is achieved by modifying the basic metamaterial fishnet structure (a metal-dielectric-metal sandwich with rectangular openings) by superposing additional subwavelength patterns, ensuring the appearance of new optical modes. The obtained unit cell superstructure will have multiple tailorable spectral peaks that will increase the selectivity at different wavelengths. The finite elements method was used for simulations of the proposed structures. As an example, we applied our results to the case of a benzene sensor, showing that its spectral properties and selectivity can be tuned by modifying geometry at a deep subwavelength scale. The obtained custom-designed spectral selectivity is convenient for multianalyte chemical sensing using a single structure. PB - Elsevier T2 - Photonics and Nanostructures-Fundamentals and Applications T1 - Nonlocal effects in double fishnet metasurfaces nanostructured at deep subwavelength level as a path toward simultaneous sensing of multiple chemical analytes VL - 18 SP - 36 EP - 42 DO - 10.1016/j.photonics.2015.12.003 ER -
@article{ author = "Tanasković, Dragan and Obradov, Marko and Jakšić, Olga and Jakšić, Zoran", year = "2016", abstract = "Nanoplasmonic devices are among the most sensitive chemical sensors, with sensitivities reaching the single-molecule level. An especially convenient class of such sensors is that based on metasurfaces with subwavelength nanoholes, examples being extraordinary optical transmission arrays and double fishnet structures. Such structures ensure operation both in transmission and reflection mode and ensure high sensitivities and excellent coupling with external readout. In this paper we consider the possibility to tailor the response of aperture-based sensor structures by modifying the geometry of nanoholes at the deep subwavelength level through ensuring controlled use of nonlocal effects. We investigate the case where nonlocality is achieved by modifying the basic metamaterial fishnet structure (a metal-dielectric-metal sandwich with rectangular openings) by superposing additional subwavelength patterns, ensuring the appearance of new optical modes. The obtained unit cell superstructure will have multiple tailorable spectral peaks that will increase the selectivity at different wavelengths. The finite elements method was used for simulations of the proposed structures. As an example, we applied our results to the case of a benzene sensor, showing that its spectral properties and selectivity can be tuned by modifying geometry at a deep subwavelength scale. The obtained custom-designed spectral selectivity is convenient for multianalyte chemical sensing using a single structure.", publisher = "Elsevier", journal = "Photonics and Nanostructures-Fundamentals and Applications", title = "Nonlocal effects in double fishnet metasurfaces nanostructured at deep subwavelength level as a path toward simultaneous sensing of multiple chemical analytes", volume = "18", pages = "36-42", doi = "10.1016/j.photonics.2015.12.003" }
Tanasković, D., Obradov, M., Jakšić, O.,& Jakšić, Z.. (2016). Nonlocal effects in double fishnet metasurfaces nanostructured at deep subwavelength level as a path toward simultaneous sensing of multiple chemical analytes. in Photonics and Nanostructures-Fundamentals and Applications Elsevier., 18, 36-42. https://doi.org/10.1016/j.photonics.2015.12.003
Tanasković D, Obradov M, Jakšić O, Jakšić Z. Nonlocal effects in double fishnet metasurfaces nanostructured at deep subwavelength level as a path toward simultaneous sensing of multiple chemical analytes. in Photonics and Nanostructures-Fundamentals and Applications. 2016;18:36-42. doi:10.1016/j.photonics.2015.12.003 .
Tanasković, Dragan, Obradov, Marko, Jakšić, Olga, Jakšić, Zoran, "Nonlocal effects in double fishnet metasurfaces nanostructured at deep subwavelength level as a path toward simultaneous sensing of multiple chemical analytes" in Photonics and Nanostructures-Fundamentals and Applications, 18 (2016):36-42, https://doi.org/10.1016/j.photonics.2015.12.003 . .