Ranjan SINGH

Research topics:

Development of terahertz, infrared, and optical metamaterial based active and passive plasmonic devices.

ASTAR_M4070314_BRENIAC

NRF-CRP23-2019-0005

QUANTUMET_ANR_NRF

T2EP50121-0017 (MOE Tier 2)

THz metamaterials

Tier 1 RG191/17

Tier 1 RG96/19

Tier-2, MOE2017-T2-1-110

TRIM_M22L1b0110

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681 to 690 of 1,229 Results

Figure S5.opj May 13, 2022 - Replication Data for: Terahertz Spintronic Magnetometer (TSM) Unknown - 88.3 KB - MD5: 59b966db15f06b6e3fe9cbb81853b5a3 Figure S5: Relation between THz emission from Qz/W/CoFeB/Pt, Qz/CoFeB/Pt, and Qz/CoFeB, for 0.15mJ/cm2 at saturation magnetic field of 100 Oe.
W_CoFeB_Pt0001.ibw May 13, 2022 - Replication Data for: Terahertz Spintronic Magnetometer (TSM) Unknown - 1.1 MB - MD5: b9469c9a0c31f677fd7bd2b897bdd941 Figure S3(b): AFM file for Qz/W/CoFeB/Pt
W_CoFeB_Pt_1.txt May 13, 2022 - Replication Data for: Terahertz Spintronic Magnetometer (TSM) Plain Text - 1.1 KB - MD5: 3b0b52de1757294642707ba3a7e14e47 Figure S3(b): AFM roughness calculation for Qz/W/CoFeB/Pt
Fig.2.tab Apr 21, 2022 - Replication Data for: Photoswitchable Anapole Metasurfaces Tabular Data - 44.8 KB - 4 Variables, 2137 Observations - UNF:6:fnWM3591po5Hh6pWmDybDg== Anapole metadevice features. Measured and simulated extinction spectra of anapole metamaterial. b, Calculated far-field scattering power of different multipoles: TD, toroidal dipole; ED, electric dipole; MD, magnetic dipole; EQ, electric quadrupole; MQ, magnetic quadrupole (two u...
Fig.3.tab Apr 21, 2022 - Replication Data for: Photoswitchable Anapole Metasurfaces Tabular Data - 82.5 KB - 7 Variables, 2137 Observations - UNF:6:w3H1uLWTPYiEAi0YnC4KJw== Measured photo-switching of anapole metadevice into an electric dipole. a, Measured and b, calculated extinction spectra of metamaterial at varying optical pump influences, showing the active switching of anapole into electric dipole. c, Electric field distributions of metamateri...
Fig.4.tab Apr 21, 2022 - Replication Data for: Photoswitchable Anapole Metasurfaces Tabular Data - 133.1 KB - 8 Variables, 2137 Observations - UNF:6:sSS+pFaZVUF22BS4deWofw== Measured and calculated extinction spectra of metamaterial at varying optical pump influences, showing the active switching of anapole into Fano I resonance.
Fig.5.tab Apr 21, 2022 - Replication Data for: Photoswitchable Anapole Metasurfaces Tabular Data - 3.4 MB - 10 Variables, 34694 Observations - UNF:6:GnbkNbFbT8Cg2yg3GKL5DA== Electric field distribution of metamaterial at anapole, Fano I, and Fano II resonances. The black arrows show the surface currents. Electric field enhancement variation of metamaterial at b, 0.466 THz and c, 0.65 THz with the change in σSi. The near electric field can be switched...
Fig.6.tab Apr 21, 2022 - Replication Data for: Photoswitchable Anapole Metasurfaces Tabular Data - 51.9 KB - 6 Variables, 1070 Observations - UNF:6:ZX7p1tF/nsa5omz/0RhLcQ== Modulation depth η = (Exton – Extoff)/Extoff of the measured extinction of anapole metamaterial with a, two Si patches and b, one Si patch in the unit cell.
Fig.S1.tab Apr 21, 2022 - Replication Data for: Photoswitchable Anapole Metasurfaces Tabular Data - 9.9 KB - 8 Variables, 120 Observations - UNF:6:Xy6kfsQUNDpsPuUFHfh5sg== Experimentally retrieved frequency-dependent photoconductivity’s real part at different pump fluences. b, Extracted photoconductivity’s real part at 0.6 THz at different pump fluences, used in the simulation to study the active switching properties of metamaterial.
Fig.S2.tab Apr 21, 2022 - Replication Data for: Photoswitchable Anapole Metasurfaces Tabular Data - 106.0 KB - 4 Variables, 2973 Observations - UNF:6:vFgRBVFX6LEBj1z0jfDh7A== The photocarrier excitation and relaxation dynamics of a 0.6 μm thick silicon epilayer on a 476 μm thick sapphire at a pump fluence of 637 μJ/cm2. The carrier relaxation dynamics is fitted by a monoexponential decay equation -Δt/t = 0.572·e-(t-120)/554 - 0.01. It indicates that t...

Figure S5.opj

May 13, 2022 - Replication Data for: Terahertz Spintronic Magnetometer (TSM)

Unknown - 88.3 KB -

Figure S5: Relation between THz emission from Qz/W/CoFeB/Pt, Qz/CoFeB/Pt, and Qz/CoFeB, for 0.15mJ/cm2 at saturation magnetic field of 100 Oe.

W_CoFeB_Pt0001.ibw

May 13, 2022 - Replication Data for: Terahertz Spintronic Magnetometer (TSM)

Unknown - 1.1 MB -

Figure S3(b): AFM file for Qz/W/CoFeB/Pt

W_CoFeB_Pt_1.txt

May 13, 2022 - Replication Data for: Terahertz Spintronic Magnetometer (TSM)

Plain Text - 1.1 KB -

Figure S3(b): AFM roughness calculation for Qz/W/CoFeB/Pt

Fig.2.tab

Apr 21, 2022 - Replication Data for: Photoswitchable Anapole Metasurfaces

Tabular Data - 44.8 KB - 4 Variables, 2137 Observations -

Anapole metadevice features. Measured and simulated extinction spectra of anapole metamaterial. b, Calculated far-field scattering power of different multipoles: TD, toroidal dipole; ED, electric dipole; MD, magnetic dipole; EQ, electric quadrupole; MQ, magnetic quadrupole (two u...

Fig.3.tab

Apr 21, 2022 - Replication Data for: Photoswitchable Anapole Metasurfaces

Tabular Data - 82.5 KB - 7 Variables, 2137 Observations -

Measured photo-switching of anapole metadevice into an electric dipole. a, Measured and b, calculated extinction spectra of metamaterial at varying optical pump influences, showing the active switching of anapole into electric dipole. c, Electric field distributions of metamateri...

Fig.4.tab

Apr 21, 2022 - Replication Data for: Photoswitchable Anapole Metasurfaces

Tabular Data - 133.1 KB - 8 Variables, 2137 Observations -

Measured and calculated extinction spectra of metamaterial at varying optical pump influences, showing the active switching of anapole into Fano I resonance.

Fig.5.tab

Apr 21, 2022 - Replication Data for: Photoswitchable Anapole Metasurfaces

Tabular Data - 3.4 MB - 10 Variables, 34694 Observations -

Electric field distribution of metamaterial at anapole, Fano I, and Fano II resonances. The black arrows show the surface currents. Electric field enhancement variation of metamaterial at b, 0.466 THz and c, 0.65 THz with the change in σSi. The near electric field can be switched...

Fig.6.tab

Apr 21, 2022 - Replication Data for: Photoswitchable Anapole Metasurfaces

Tabular Data - 51.9 KB - 6 Variables, 1070 Observations -

Modulation depth η = (Exton – Extoff)/Extoff of the measured extinction of anapole metamaterial with a, two Si patches and b, one Si patch in the unit cell.

Fig.S1.tab

Apr 21, 2022 - Replication Data for: Photoswitchable Anapole Metasurfaces

Tabular Data - 9.9 KB - 8 Variables, 120 Observations -

Experimentally retrieved frequency-dependent photoconductivity’s real part at different pump fluences. b, Extracted photoconductivity’s real part at 0.6 THz at different pump fluences, used in the simulation to study the active switching properties of metamaterial.

Fig.S2.tab

Apr 21, 2022 - Replication Data for: Photoswitchable Anapole Metasurfaces

Tabular Data - 106.0 KB - 4 Variables, 2973 Observations -

The photocarrier excitation and relaxation dynamics of a 0.6 μm thick silicon epilayer on a 476 μm thick sapphire at a pump fluence of 637 μJ/cm2. The carrier relaxation dynamics is fitted by a monoexponential decay equation -Δt/t = 0.572·e-(t-120)/554 - 0.01. It indicates that t...

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