Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/88953
Title: Color-sensitive ultrafast optical modulation and switching of terahertz plasmonic devices
Authors: Kumar, Abhishek
Srivastava, Yogesh Kumar
Manjappa, Manukumara
Singh, Ranjan
Keywords: DRNTU::Science::Physics
Color Sensitive Modulator
Ultrafast Switch
Issue Date: 2018
Source: Kumar, A., Srivastava, Y. K., Manjappa, M., & Singh, R. (2018). Color-Sensitive Ultrafast Optical Modulation and Switching of Terahertz Plasmonic Devices. Advanced Optical Materials, 6(15), 1800030-. doi:10.1002/adom.201800030
Series/Report no.: Advanced Optical Materials
Abstract: 2D micro‐nanostructured metal films with hole arrays show promising features such as the extraordinary transmission of light. Such systems are interesting in the field of subwavelength photonics and nonlinear optics due to their high field confinement in addition to their inherent spectral scalability and frequency selective response. Several active schemes to control the extraordinary transmission are recently demonstrated. However, these dynamic devices do not reveal any obvious color‐dependent modulation of the resonant transmission behavior. Here, color‐sensitive ultrafast modulation of extraordinary resonant transmission of terahertz (THz) waves through 2D metallic hole arrays is demonstrated. Pumping the silicon beneath the metallic array with light of different colors and identical fluences exhibit significantly different ultrafast switching dynamics and modulation. The color‐dependent sensitivity and control of THz waves at an ultrafast timescale provide an extra degree of freedom that opens up new opportunities for future applications in active subwavelength optics, optoelectronics, and all‐optical switching of THz photonic devices.
URI: https://hdl.handle.net/10356/88953
http://hdl.handle.net/10220/48339
DOI: 10.1002/adom.201800030
Rights: © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. This is the peer reviewed version of the following article: Kumar, A., Srivastava, Y. K., Manjappa, M., & Singh, R. (2018). Color-Sensitive Ultrafast Optical Modulation and Switching of Terahertz Plasmonic Devices. Advanced Optical Materials, 6(15), 1800030-., which has been published in final form at http://dx.doi.org/10.1002/adom.201800030. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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