Dependence of loss parameters on circularly polarized terahertz wave propagation through graphene gated metamaterial
Апстракт
Polarization is an important characteristic of electromagnetic waves and manipulation of polarization plays pivotal role in different areas such as communications, imaging and sensing. On the other hand, the ability to dynamically modify the state of polarization with metamaterials enables control of circular dichroism and optical activity in terahertz frequency range [1,2]. This dynamic control can be realized by incorporating graphene layer into the metasurface, whose conductivity can be controlled by applying gate voltage. In this work, the effect of graphene conductivity on chiral effects of the metasurface will be analyzed using temporal coupled-mode theory [3,4]. In this frame, each resonant mode is characterized with its resonant frequency, radiative and non-radiative coupling coefficients. These parameters will be retrieved from simulated reflection and transmission spectra for left and right circular polarizations. In such way, theoretical model for tunable chiral effects in g...raphene metasurface will be given, enabling further improvement of its properties.
Извор:
PHOTONICA2021 : 8th International School and Conference on Photonics and HEMMAGINERO workshop : Abstracts of Tutorial, Keynote, Invited Lectures, Progress Reports and Contributed Papers; August 23-27, 2021; Belgrade, 2021, 164-Издавач:
- Belgrade : Institute of Physics Belgrade
Напомена:
- VIII International School and Conference on Photonics and HEMMAGINERO workshop : PHOTONICA2021 : book of abstracts; August 23-27, 2021; Belgrade
Колекције
Институција/група
VinčaTY - CONF AU - Milošević, V. AU - Ralević, Uroš AU - Stojanović, D. B. PY - 2021 UR - https://vinar.vin.bg.ac.rs/handle/123456789/10916 AB - Polarization is an important characteristic of electromagnetic waves and manipulation of polarization plays pivotal role in different areas such as communications, imaging and sensing. On the other hand, the ability to dynamically modify the state of polarization with metamaterials enables control of circular dichroism and optical activity in terahertz frequency range [1,2]. This dynamic control can be realized by incorporating graphene layer into the metasurface, whose conductivity can be controlled by applying gate voltage. In this work, the effect of graphene conductivity on chiral effects of the metasurface will be analyzed using temporal coupled-mode theory [3,4]. In this frame, each resonant mode is characterized with its resonant frequency, radiative and non-radiative coupling coefficients. These parameters will be retrieved from simulated reflection and transmission spectra for left and right circular polarizations. In such way, theoretical model for tunable chiral effects in graphene metasurface will be given, enabling further improvement of its properties. PB - Belgrade : Institute of Physics Belgrade C3 - PHOTONICA2021 : 8th International School and Conference on Photonics and HEMMAGINERO workshop : Abstracts of Tutorial, Keynote, Invited Lectures, Progress Reports and Contributed Papers; August 23-27, 2021; Belgrade T1 - Dependence of loss parameters on circularly polarized terahertz wave propagation through graphene gated metamaterial SP - 164 UR - https://hdl.handle.net/21.15107/rcub_vinar_10916 ER -
@conference{ author = "Milošević, V. and Ralević, Uroš and Stojanović, D. B.", year = "2021", abstract = "Polarization is an important characteristic of electromagnetic waves and manipulation of polarization plays pivotal role in different areas such as communications, imaging and sensing. On the other hand, the ability to dynamically modify the state of polarization with metamaterials enables control of circular dichroism and optical activity in terahertz frequency range [1,2]. This dynamic control can be realized by incorporating graphene layer into the metasurface, whose conductivity can be controlled by applying gate voltage. In this work, the effect of graphene conductivity on chiral effects of the metasurface will be analyzed using temporal coupled-mode theory [3,4]. In this frame, each resonant mode is characterized with its resonant frequency, radiative and non-radiative coupling coefficients. These parameters will be retrieved from simulated reflection and transmission spectra for left and right circular polarizations. In such way, theoretical model for tunable chiral effects in graphene metasurface will be given, enabling further improvement of its properties.", publisher = "Belgrade : Institute of Physics Belgrade", journal = "PHOTONICA2021 : 8th International School and Conference on Photonics and HEMMAGINERO workshop : Abstracts of Tutorial, Keynote, Invited Lectures, Progress Reports and Contributed Papers; August 23-27, 2021; Belgrade", title = "Dependence of loss parameters on circularly polarized terahertz wave propagation through graphene gated metamaterial", pages = "164", url = "https://hdl.handle.net/21.15107/rcub_vinar_10916" }
Milošević, V., Ralević, U.,& Stojanović, D. B.. (2021). Dependence of loss parameters on circularly polarized terahertz wave propagation through graphene gated metamaterial. in PHOTONICA2021 : 8th International School and Conference on Photonics and HEMMAGINERO workshop : Abstracts of Tutorial, Keynote, Invited Lectures, Progress Reports and Contributed Papers; August 23-27, 2021; Belgrade Belgrade : Institute of Physics Belgrade., 164. https://hdl.handle.net/21.15107/rcub_vinar_10916
Milošević V, Ralević U, Stojanović DB. Dependence of loss parameters on circularly polarized terahertz wave propagation through graphene gated metamaterial. in PHOTONICA2021 : 8th International School and Conference on Photonics and HEMMAGINERO workshop : Abstracts of Tutorial, Keynote, Invited Lectures, Progress Reports and Contributed Papers; August 23-27, 2021; Belgrade. 2021;:164. https://hdl.handle.net/21.15107/rcub_vinar_10916 .
Milošević, V., Ralević, Uroš, Stojanović, D. B., "Dependence of loss parameters on circularly polarized terahertz wave propagation through graphene gated metamaterial" in PHOTONICA2021 : 8th International School and Conference on Photonics and HEMMAGINERO workshop : Abstracts of Tutorial, Keynote, Invited Lectures, Progress Reports and Contributed Papers; August 23-27, 2021; Belgrade (2021):164, https://hdl.handle.net/21.15107/rcub_vinar_10916 .