Ghülam Murtaza

ORCID: 0000-0003-1604-2101
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About
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Research Areas
  • Quantum Information and Cryptography
  • Quantum optics and atomic interactions
  • Laser-Matter Interactions and Applications
  • Quantum Mechanics and Applications
  • Smart Grid Energy Management
  • Electronic Packaging and Soldering Technologies
  • Spectroscopy and Quantum Chemical Studies
  • Microgrid Control and Optimization
  • Electrical Contact Performance and Analysis
  • Power Systems and Technologies
  • Mechanical and Optical Resonators
  • Electromagnetic Compatibility and Noise Suppression
  • Nonlinear Optical Materials Studies
  • Smart Grid Security and Resilience

University of Naples Federico II
2022-2023

National Institute of Optics
2021-2023

Beijing University of Posts and Telecommunications
2019-2020

Quantum key distribution (QKD) allows the of cryptographic keys between multiple users in an information-theoretic secure way, exploiting quantum physics. While current QKD systems are mainly based on attenuated laser pulses, deterministic single-photon sources could give concrete advantages terms secret rate (SKR) and security owing to negligible probability multi-photon events. Here, we introduce demonstrate a proof-of-concept system molecule-based source operating at room temperature...

10.1364/oe.476440 article EN cc-by Optics Express 2022-12-12

This work presents a cost-effective optical frequency comb generator (CEOFCG) solution for generating multiple, equally spaced carriers in wavelength-division-multiplexing coherent fiber communication systems (WDM-COFCS). It enables the replacement of multiple laser sources with single continuous-wave laser, eliminating need additional amplification and filtering setups. The CEOFCG provides stable multicarrier spacing, broad phase coherence, compatibility advanced modulation formats,...

10.3390/chips4020016 article EN cc-by Chips 2025-04-10

Single molecules in solid state matrices have been proposed as sources of single photon Fock states back 20 years ago. Their success quantum optics and many other research fields stems from the simple recipes used preparation samples, with hundreds nominally identical isolated molecules. Main challenges today for their application photonic technologies are optimization light extraction on-demand emission indistinguishable photons. We here present Hong–Ou–Mandel (HOM) experiments photons...

10.1063/5.0048567 article EN cc-by Applied Physics Letters 2021-05-17

RF coaxial connectors are essential components in radio frequency and microwave systems. The electrical contacts degradation of significantly affects the signal integrity is one major causes system failure. In present work, effects on communication were studied. Different levels degraded analyzed using both theoretical analysis experimental testing. Scattering parameters obtained from simulation models good agreement with measurement results. 3D results also examined to show how...

10.1109/icmmt45702.2019.8992117 article EN 2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT) 2019-05-01

The advance management of the power supply to load such as in homes, offices, etc. and from source central network a smart grid system with lowest possible loss is considered here this paper using concept energy internet. It also includes complete details flow control. In paper, efficiency transmission increased by routers based on open shortest path first (OSPF) protocol, new field By local area (e-LAN) concept, all are connected OSPF protocols virtual circuit theory. An algorithm proposed...

10.1504/ijccia.2019.10024515 article EN International Journal of Computational Complexity and Intelligent Algorithms 2019-01-01

The advance management of the power supply to load such as in homes, offices, etc. and from source central network a smart grid system with lowest possible loss is considered here this paper using concept energy internet. It also includes complete details flow control. In paper, efficiency transmission increased by routers based on open shortest path first (OSPF) protocol, new field By local area (e-LAN) concept, all are connected OSPF protocols virtual circuit theory. An algorithm proposed...

10.1504/ijccia.2020.105559 article EN International Journal of Computational Complexity and Intelligent Algorithms 2020-01-01

Single molecules in solid-state matrices have been proposed as sources of single-photon Fock states back 20 years ago. Their success quantum optics and many other research fields stems from the simple recipes used preparation samples, with hundreds nominally identical isolated molecules. Main challenges today for their application photonic technologies are optimization light extraction on-demand emission indistinguishable photons. We here present Hong-Ou-Mandel experiments photons emitted by...

10.48550/arxiv.2102.13055 preprint EN cc-by-nc-nd arXiv (Cornell University) 2021-01-01

We present Hong-Ou-Mandel (HOM) experiments with photons emitted by a single molecule of Dibenzoterrylene in an Anthracene nanocrystal under pulsed excitation, and preliminary results for two spatially-separated molecules on the same sample.

10.1364/qim.2021.tu2b.3 article EN Quantum Information and Measurement VI 2021 2021-01-01

A major challenge in photonic quantum technologies is two-photon interference from distinct emitters on the same chip. Here, we show and discuss recent results Hong–Ou–Mandel experiments using couples of single organic molecules within few tens microns, yielding post-selected visibilities up to 97%. In particular, potential interest for future realizations measurement-device independent key distribution protocols information-theoretic secure communication.

10.1117/12.2649945 article EN 2023-03-08

We demonstrate a quantum key distribution testbed exploiting molecule-based single-photon source operating at room-temperature. With an estimated secret rate of 0.5Mbps, we set the ground for room-temperature deterministic emitters communication protocols.

10.1364/sppcom.2022.spw2j.1 article EN Optica Advanced Photonics Congress 2022 2022-01-01

Quantum light sources are crucial for the future of quantum photonic technologies and, among them, single photons on-demand key resources in communications and information processing. Ideal emitters providing indistinguishable a clocked manner, negligible decoherence spectral diffusion, with potential scalability today still major challenge. We report on photostable photon emission from dibenzoterrylene molecules isolated anthracene nanocrystals (DBT:Ac NCs) at 3K. The visibility two-photon...

10.1051/epjconf/202125506002 article EN cc-by EPJ Web of Conferences 2021-01-01
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