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Journal Articles

Valley-Hall photonic crystal waveguides under non-Hermitian active defect

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Shrinivas Jayaram, Yi Ji Tan, Nikhil Navaratna, Thomas CaiWei Tan, Yidong Chong, Ranjan Singh
Journal: Applied Physics Letters
Appl. Phys. Lett. 125, 051101 (2024)
https://doi.org/10.1063/5.0213641
Published: July 2024
View articletitled, Valley-Hall photonic crystal waveguides under non-Hermitian active defect
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Journal Articles

327 Gbps THz silicon photonic interconnect with sub-λ bends

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Manoj Gupta, Nikhil Navaratna, Pascal Szriftgiser, Guillaume Ducournau, Ranjan Singh
Journal: Applied Physics Letters
Appl. Phys. Lett. 123, 171102 (2023)
https://doi.org/10.1063/5.0168016
Published: October 2023
View articletitled, 327 Gbps THz silicon photonic interconnect with sub-λ bends
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Includes: Supplementary data
Journal Articles

On-chip topological THz biosensors

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Nikhil Navaratna, Yi Ji Tan, Abhishek Kumar, Manoj Gupta, Ranjan Singh
Journal: Applied Physics Letters
Appl. Phys. Lett. 123, 033705 (2023)
https://doi.org/10.1063/5.0157357
Published: July 2023
View articletitled, On-chip topological THz biosensors
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Includes: Supplementary data
Journal Articles

Terahertz topological photonic integrated circuits for 6G and beyond: A Perspective

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Abhishek Kumar, Manoj Gupta, Prakash Pitchappa, Nan Wang, Masayuki Fujita, Ranjan Singh
Journal: Journal of Applied Physics
J. Appl. Phys. 132, 140901 (2022)
https://doi.org/10.1063/5.0099423
Published: October 2022
View articletitled, Terahertz topological photonic integrated circuits for 6G and beyond: A Perspective
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Journal Articles

Topological sensor on a silicon chip

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Abhishek Kumar, Manoj Gupta, Prakash Pitchappa, Yi Ji Tan, Nan Wang, Ranjan Singh
Journal: Applied Physics Letters
Appl. Phys. Lett. 121, 011101 (2022)
https://doi.org/10.1063/5.0097129
Published: July 2022
View articletitled, Topological sensor on a silicon chip
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Includes: Supplementary data
Journal Articles

Terahertz spintronic magnetometer (TSM)

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Piyush Agarwal, Yingshu Yang, James Lourembam, Rohit Medwal, Marco Battiato, Ranjan Singh
Journal: Applied Physics Letters
Appl. Phys. Lett. 120, 161104 (2022)
https://doi.org/10.1063/5.0079989
Published: April 2022
View articletitled, Terahertz spintronic magnetometer (TSM)
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Includes: Supplementary data
Journal Articles

A terahertz Brewster switch based on superconductor hyperbolic metamaterial

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Kandammathe Valiyaveedu Sreekanth, P. Mahalakshmi, Song Han, D. Vigneswaran, M. S. Mani Rajan, Rajan Jha, Ranjan Singh
Journal: Journal of Applied Physics
J. Appl. Phys. 128, 173106 (2020)
https://doi.org/10.1063/5.0025925
Published: November 2020
View articletitled, A terahertz Brewster switch based on superconductor hyperbolic metamaterial
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Includes: Supplementary data
Journal Articles

Thermoluminescence analysis of blue persistent phosphor

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E. Gopal, L. Lovedy Singh, Th. Ranjan Singh
Journal: AIP Conference Proceedings
AIP Conf. Proc. 2270, 040015 (2020)
https://doi.org/10.1063/5.0019369
Published: November 2020
View articletitled, Thermoluminescence analysis of blue persistent phosphor
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Journal Articles

Terahertz sensing of 7 nm dielectric film with bound states in the continuum metasurfaces

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Yogesh Kumar Srivastava, Rajour Tanyi Ako, Manoj Gupta, Madhu Bhaskaran, Sharath Sriram, Ranjan Singh
Journal: Applied Physics Letters
Appl. Phys. Lett. 115, 151105 (2019)
https://doi.org/10.1063/1.5110383
Published: October 2019
View articletitled, Terahertz sensing of 7 nm dielectric film with bound states in the continuum metasurfaces
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Includes: Supplementary data
Journal Articles

Ultrafast THz photophysics of solvent engineered triple-cation halide perovskites

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Abhishek Kumar, Anish Priyadarshi, Sudhanshu Shukla, Manukumara Manjappa, Lew Jia Haur, Subodh G. Mhaisalkar, Ranjan Singh
Journal: Journal of Applied Physics
J. Appl. Phys. 124, 215106 (2018)
https://doi.org/10.1063/1.5051561
Published: December 2018
View articletitled, Ultrafast THz photophysics of solvent engineered triple-cation halide perovskites
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Journal Articles

Nanofluidic terahertz metasensor for sensing in aqueous environment

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Kailing Shih, Prakash Pitchappa, Lin Jin, Chia-Hung Chen, Ranjan Singh, Chengkuo Lee
Journal: Applied Physics Letters
Appl. Phys. Lett. 113, 071105 (2018)
https://doi.org/10.1063/1.5041485
Published: August 2018
View articletitled, Nanofluidic terahertz metasensor for sensing in aqueous environment
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Journal Articles

Lattice induced strong coupling and line narrowing of split resonances in metamaterials

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Thomas CaiWei Tan, Yogesh Kumar Srivastava, Manukumara Manjappa, Eric Plum, Ranjan Singh
Journal: Applied Physics Letters
Appl. Phys. Lett. 112, 201111 (2018)
https://doi.org/10.1063/1.5026649
Published: May 2018
View articletitled, Lattice induced strong coupling and line narrowing of split resonances in metamaterials
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Includes: Supplementary data
Journal Articles

Giant enhancement in Goos-Hänchen shift at the singular phase of a nanophotonic cavity

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Kandammathe Valiyaveedu Sreekanth, Qingling Ouyang, Song Han, Ken-Tye Yong, Ranjan Singh
Journal: Applied Physics Letters
Appl. Phys. Lett. 112, 161109 (2018)
https://doi.org/10.1063/1.5027133
Published: April 2018
View articletitled, Giant enhancement in Goos-Hänchen shift at the singular phase of a nanophotonic cavity
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Journal Articles

Bidirectional reconfiguration and thermal tuning of microcantilever metamaterial device operating from 77 K to 400 K

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Prakash Pitchappa, Manukumara Manjappa, Harish N. S. Krishnamoorthy, Yuhua Chang, Chengkuo Lee, Ranjan Singh
Journal: Applied Physics Letters
Appl. Phys. Lett. 111, 261101 (2017)
https://doi.org/10.1063/1.5006836
Published: December 2017
View articletitled, Bidirectional reconfiguration and thermal tuning of microcantilever metamaterial device operating from 77 K to 400 K
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Journal Articles

Dual-surface flexible THz Fano metasensor

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Yogesh Kumar Srivastava, Longqing Cong, Ranjan Singh
Journal: Applied Physics Letters
Appl. Phys. Lett. 111, 201101 (2017)
https://doi.org/10.1063/1.5000428
Published: November 2017
View articletitled, Dual-surface flexible THz Fano metasensor
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Includes: Supplementary data
Journal Articles

Impact of conductivity on Lorentzian and Fano resonant high-Q THz metamaterials: Superconductor, metal and perfect electric conductor

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Yogesh Kumar Srivastava, Ranjan Singh
Journal: Journal of Applied Physics
J. Appl. Phys. 122, 183104 (2017)
https://doi.org/10.1063/1.4994951
Published: November 2017
View articletitled, Impact of conductivity on Lorentzian and Fano resonant high-Q THz metamaterials: Superconductor, metal and perfect electric conductor
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Includes: Supplementary data
Journal Articles

Toroidal and magnetic Fano resonances in planar THz metamaterials

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Song Han, Manoj Gupta, Longqing Cong, Yogesh Kumar Srivastava, Ranjan Singh
Journal: Journal of Applied Physics
J. Appl. Phys. 122, 113105 (2017)
https://doi.org/10.1063/1.5001246
Published: September 2017
View articletitled, Toroidal and magnetic Fano resonances in planar THz metamaterials
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Includes: Supplementary data
Journal Articles

Tailoring the multipoles in THz toroidal metamaterials

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Longqing Cong, Yogesh Kumar Srivastava, Ranjan Singh
Journal: Applied Physics Letters
Appl. Phys. Lett. 111, 081108 (2017)
https://doi.org/10.1063/1.4993670
Published: August 2017
View articletitled, Tailoring the multipoles in THz toroidal metamaterials
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Includes: Supplementary data
Journal Articles

High-Q plasmonic infrared absorber for sensing of molecular resonances in hybrid lead halide perovskites

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Govind Dayal, Ankur Solanki, Xin Yu Chin, Tze Chien Sum, Cesare Soci, Ranjan Singh
Journal: Journal of Applied Physics
J. Appl. Phys. 122, 073101 (2017)
https://doi.org/10.1063/1.4997442
Published: August 2017
View articletitled, High-Q plasmonic infrared absorber for sensing of molecular resonances in hybrid lead halide perovskites
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Includes: Supplementary data
Journal Articles

Near-infrared linewidth narrowing in plasmonic Fano-resonant metamaterials via tuning of multipole contributions

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Wen Xiang Lim, Song Han, Manoj Gupta, Kevin F. MacDonald, Ranjan Singh
Journal: Applied Physics Letters
Appl. Phys. Lett. 111, 061104 (2017)
https://doi.org/10.1063/1.4997423
Published: August 2017
View articletitled, Near-infrared linewidth narrowing in plasmonic Fano-resonant metamaterials via tuning of multipole contributions
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