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989 Results Found

  • Article
  • Open Access
7 Citations
3,361 Views
20 Pages

Quantum Compressive Sensing: Mathematical Machinery, Quantum Algorithms, and Quantum Circuitry

  • Kyle M. Sherbert,
  • Naveed Naimipour,
  • Haleh Safavi,
  • Harry C. Shaw and
  • Mojtaba Soltanalian

26 July 2022

Compressive sensing is a sensing protocol that facilitates the reconstruction of large signals from relatively few measurements by exploiting known structures of signals of interest, typically manifested as signal sparsity. Compressive sensing’...

  • Communication
  • Open Access
6 Citations
3,169 Views
9 Pages

Robust Quantum State Tomography Method for Quantum Sensing

  • Ahmad Farooq,
  • Uman Khalid,
  • Junaid ur Rehman and
  • Hyundong Shin

30 March 2022

Reliable and efficient reconstruction of pure quantum states under the processing of noisy measurement data is a vital tool in fundamental and applied quantum information sciences owing to communication, sensing, and computing. Specifically, the puri...

  • Review
  • Open Access
1 Citations
4,585 Views
29 Pages

Quantum-Empowered Fiber Sensing Metrology

  • Xiaojie Zuo,
  • Zhangguan Tang,
  • Boyao Li,
  • Xiaoyong Chen and
  • Jinghua Sun

Quantum sensing leverages quantum resources to enable ultra-precise measurements beyond classical limits, driving transformative advancements in metrology. Optical fiber quantum sensing, integrating optical fiber sensing with quantum technologies, en...

  • Review
  • Open Access
2 Citations
4,687 Views
23 Pages

Quantum-Enhanced Sensing with Squeezed Light: From Fundamentals to Applications

  • Xing Heng,
  • Lingchen Zhang,
  • Qingyun Yin,
  • Wei Liu,
  • Lulu Tang,
  • Yueyang Zhai and
  • Kai Wei

18 September 2025

Squeezed light, a prominent non-classical state of light, exhibits reduced quantum noise in one quadrature component below the standard quantum limit (SQL). The property enables quantum-enhanced precision measurements, surpassing the SQL in quantum s...

  • Perspective
  • Open Access
15 Citations
4,790 Views
9 Pages

The Concept of a Quantum Edge Simulator: Edge Computing and Sensing in the Quantum Era

  • Ali Passian,
  • Gilles Buchs,
  • Christopher M. Seck,
  • Alberto M. Marino and
  • Nicholas A. Peters

23 December 2022

Sensors, enabling observations across vast spatial, spectral, and temporal scales, are major data generators for information technology (IT). Processing, storing, and communicating this ever-growing amount of data pose challenges for the current IT i...

  • Review
  • Open Access
7 Citations
7,029 Views
21 Pages

Quantum Sensing of Noisy and Complex Systems under Dynamical Control

  • Gershon Kurizki,
  • Gonzalo A. Alvarez and
  • Analia Zwick

We review our unified optimized approach to the dynamical control of quantum-probe interactions with noisy and complex systems viewed as thermal baths. We show that this control, in conjunction with tools of quantum estimation theory, may be used for...

  • Review
  • Open Access
4 Citations
7,187 Views
25 Pages

Emerging Diamond Quantum Sensing in Bio-Membranes

  • Yayin Tan,
  • Xinhao Hu,
  • Yong Hou and
  • Zhiqin Chu

30 September 2022

Bio-membranes exhibit complex but unique mechanical properties as communicative regulators in various physiological and pathological processes. Exposed to a dynamic micro-environment, bio-membranes can be seen as an intricate and delicate system. The...

  • Article
  • Open Access
3,771 Views
18 Pages

20 January 2020

Subwavelength optical micro/nanofibers have been widely used as basic building blocks in the field of quantum sensing and quantum light source by virtue of their properties which include pronounced evanescent field, large surface area, and small opti...

  • Article
  • Open Access
9 Citations
17,650 Views
20 Pages

Hands-On Quantum Sensing with NV Centers in Diamonds

  • J. L. Sánchez Toural,
  • V. Marzoa,
  • R. Bernardo-Gavito,
  • J. L. Pau and
  • D. Granados

29 January 2023

The physical properties of diamond crystals, such as color or electrical conductivity, can be controlled via impurities. In particular, when doped with nitrogen, optically active nitrogen-vacancy centers (NV), can be induced. The center is an outstan...

  • Article
  • Open Access
7 Citations
4,501 Views
8 Pages

A Bright Squeezed Light Source for Quantum Sensing

  • Wenhai Yang,
  • Wenting Diao,
  • Chunxiao Cai,
  • Tao Wu,
  • Ke Wu,
  • Yu Li,
  • Cong Li,
  • Chongdi Duan,
  • Hanyang Leng and
  • Ning Zi
  • + 1 author

The use of optical sensing for in vivo applications is compelling, since it offers the advantages of non-invasiveness, non-ionizing radiation, and real-time monitoring. However, the signal-to-noise ratio (SNR) of the optical signal deteriorates drama...

  • Article
  • Open Access
8 Citations
3,634 Views
8 Pages

Lightly Boron-Doped Nanodiamonds for Quantum Sensing Applications

  • Masfer Alkahtani,
  • Dmitrii K. Zharkov,
  • Andrey V. Leontyev,
  • Artemi G. Shmelev,
  • Victor G. Nikiforov and
  • Philip R. Hemmer

10 February 2022

Unlike standard nanodiamonds (NDs), boron-doped nanodiamonds (BNDs) have shown great potential in heating a local environment, such as tumor cells, when excited with NIR lasers (808 nm). This advantage makes BNDs of special interest for hyperthermia...

  • Article
  • Open Access
5 Citations
5,551 Views
17 Pages

12 April 2024

The sensing of stress under harsh environmental conditions with high resolution has critical importance for a range of applications including earth’s subsurface scanning, geological CO2 storage monitoring, and mineral and resource recovery. Usi...

  • Review
  • Open Access
21 Citations
4,748 Views
19 Pages

Research Update of Emergent Sulfur Quantum Dots in Synthesis and Sensing/Bioimaging Applications

  • Keke Ning,
  • Yujie Sun,
  • Jiaxin Liu,
  • Yao Fu,
  • Kang Ye,
  • Jiangong Liang and
  • Yuan Wu

28 April 2022

Due to their unique optical property, low toxicity, high hydrophilicity, and low cost, sulfur quantum dots (SQDs), an emerging luminescent nanomaterial, have shown great potential in various application fields, such as sensing, bioimaging, light emit...

  • Article
  • Open Access
10 Citations
3,738 Views
18 Pages

Sustainable Preparation of Graphene Quantum Dots for Metal Ion Sensing Application

  • Asif Saud,
  • Haleema Saleem,
  • Nazmin Munira,
  • Arqam Azad Shahab,
  • Hammadur Rahman Siddiqui and
  • Syed Javaid Zaidi

28 December 2022

Over the past several years, graphene quantum dots (GQDs) have been extensively studied in water treatment and sensing applications because of their exceptional structure-related properties, intrinsic inert carbon property, eco-friendly nature, etc....

  • Article
  • Open Access
25 Citations
3,470 Views
15 Pages

Tunable Sensing and Transport Properties of Doped Hexagonal Boron Nitride Quantum Dots for Efficient Gas Sensors

  • Hazem Abdelsalam,
  • Vasil A. Saroka,
  • Mohamed M. Atta,
  • Omar H. Abd-Elkader,
  • Nouf S. Zaghloul and
  • Qinfang Zhang

21 November 2022

The electronic, sensing, and transport properties of doped square hexagonal boron nitride (shBN) quantum dots were investigated using density functional theory calculations. The electronic and magnetic properties were controlled by substitutional dop...

  • Article
  • Open Access
3 Citations
2,194 Views
10 Pages

Glass Ceramic Fibers Containing PbS Quantum Dots for Fluorescent Temperature Sensing

  • Tingyu Zha,
  • Penghui Zhang,
  • Xilong Jin,
  • Yi Long,
  • Taoyun Huang,
  • Hong Jia,
  • Zaijin Fang and
  • Bai-Ou Guan

Glass ceramics (GCs) containing PbS quantum dots (QDs) are prepared for temperature sensing. Broadband emissions are detected in the GCs when PbS QDs are precipitated from the glasses, and emissions centers are modulated from 1250 nm to 1960 nm via h...

  • Article
  • Open Access
3 Citations
1,719 Views
16 Pages

30 July 2024

The agile remote sensing satellite scheduling problem (ARSSSP) for large-scale tasks needs to simultaneously address the difficulties of complex constraints and a huge solution space. Taking inspiration from the quantum genetic algorithm (QGA), a mul...

  • Communication
  • Open Access
10 Citations
3,425 Views
9 Pages

22 August 2019

Quantum dots (QDs) are very attractive nanomaterials for analytical chemistry, due to high photostability, large surface area featuring numerous ways of bioconjugation with biomolecules, usually high quantum yield and long decay times. Their broad ab...

  • Article
  • Open Access
1 Citations
2,222 Views
13 Pages

CO2 Gas Temperature Sensing near Room Temperature by a Quantum Cascade Laser in Inter Pulse Mode

  • Frank Herklotz,
  • Tom Rubin,
  • Theodore von Haimberger and
  • Karsten Heyne

A non-invasive CO2 gas temperature sensing technique at or close to the room temperature range based on quantum cascade laser absorption spectroscopy is presented. The method probes thermally populated ground state and hot-band rotational-vibrational...

  • Review
  • Open Access
67 Citations
10,202 Views
37 Pages

An Overview of the Recent Developments in Carbon Quantum Dots—Promising Nanomaterials for Metal Ion Detection and (Bio)Molecule Sensing

  • Silvija Šafranko,
  • Dominik Goman,
  • Anamarija Stanković,
  • Martina Medvidović-Kosanović,
  • Tihomir Moslavac,
  • Igor Jerković and
  • Stela Jokić

The fluorescent carbon quantum dots (CQDs) represent an emerging subset of carbonaceous nanomaterials, recently becoming a powerful tool for biosensing, bioimaging, and drug and gene delivery. In general, carbon dots are defined as zero-dimensional (...

  • Article
  • Open Access
53 Citations
10,693 Views
10 Pages

Non-Enzymatic Glucose Sensing Using Carbon Quantum Dots Decorated with Copper Oxide Nanoparticles

  • Houcem Maaoui,
  • Florina Teodoresu,
  • Qian Wang,
  • Guo-Hui Pan,
  • Ahmed Addad,
  • Radhouane Chtourou,
  • Sabine Szunerits and
  • Rabah Boukherroub

18 October 2016

Perturbations in glucose homeostasis is critical for human health, as hyperglycemia (defining diabetes) leads to premature death caused by macrovascular and microvascular complications. However, the simple and accurate detection of glucose in the blo...

  • Article
  • Open Access
1 Citations
1,084 Views
13 Pages

8 February 2025

Nano-sized quantum dots (QDs) have the potential for the application of stress sensing materials based on their pressure-sensitive photoluminescence (PL) properties, while the influence of a more realistic loading environment on the PL characteristic...

  • Article
  • Open Access
15 Citations
3,723 Views
12 Pages

Cationically Modified Nanocrystalline Cellulose/Carboxyl-Functionalized Graphene Quantum Dots Nanocomposite Thin Film: Characterization and Potential Sensing Application

  • Najwa Norimanina Muhammad Rosddi,
  • Yap Wing Fen,
  • Nur Ain Asyiqin Anas,
  • Nur Alia Sheh Omar,
  • Nur Syahira Md Ramdzan and
  • Wan Mohd Ebtisyam Mustaqim Mohd Daniyal

27 September 2020

In this study, highly functional cationically modified nanocrystalline cellulose (NCC)/carboxyl-functionalized graphene quantum dots (CGQD) has been described. The surface of NCC was first modified with hexadecyltrimethylammonium bromide (CTA) before...

  • Article
  • Open Access
21 Citations
4,588 Views
12 Pages

Quantum Yield Enhancement of Carbon Quantum Dots Using Chemical-Free Precursors for Sensing Cr (VI) Ions

  • Karthiga Anpalagan,
  • Hong Yin,
  • Ivan Cole,
  • Tian Zhang and
  • Daniel T. H. Lai

Quantum yield illustrates the efficiency that a fluorophore converts the excitation light into fluorescence emission. The quantum yield of carbon quantum dots (CQDs) can be altered via precursors, fabrication conditions, chemical doping, and surface...

  • Proceeding Paper
  • Open Access
1 Citations
1,455 Views
8 Pages

Quantum Sensing 1/f Noise via Pulsed Control of a Two-Qubit Gate

  • Antonio D’Arrigo,
  • Giuseppe Falci and
  • Elisabetta Paladino

Dynamical decoupling sequences are a convenient tool to reduce decoherence due to intrinsic fluctuations with 1 / f power spectrum hindering quantum circuits. We study the possibility to achieve an efficient universal two-qubit gate in the pr...

  • Review
  • Open Access
29 Citations
9,901 Views
19 Pages

A Review on the Use of Biochar Derived Carbon Quantum Dots Production for Sensing Applications

  • Giovanni Lo Bello,
  • Mattia Bartoli,
  • Mauro Giorcelli,
  • Massimo Rovere and
  • Alberto Tagliaferro

Since their discovery, carbon dots have attracted a great deal of interest for their perspective biological applications. Nevertheless, the quenching of carbon dots photoluminescence represents an interesting feature for quantitative analysis in very...

  • Review
  • Open Access
11 Citations
3,162 Views
14 Pages

7 December 2021

Polycyclic aromatic hydrocarbons (PAHs) and nitro-aromatic compounds (NACs) are two classifications of environmental pollutants that have become a source of health concerns. As a result, there have been several efforts towards the development of anal...

  • Article
  • Open Access
7 Citations
14,256 Views
12 Pages

Measurement Back-Action in Quantum Point-Contact Charge Sensing

  • Bruno Küng,
  • Simon Gustavsson,
  • Theodore Choi,
  • Ivan Shorubalko,
  • Oliver Pfäffli,
  • Fabian Hassler,
  • Gianni Blatter,
  • Matthias Reinwald,
  • Werner Wegscheider and
  • Silke Schön
  • + 2 authors

29 June 2010

Charge sensing with quantum point-contacts (QPCs) is a technique widely used in semiconductor quantum-dot research. Understanding the physics of this measurement process, as well as finding ways of suppressing unwanted measurement back-action, are th...

  • Review
  • Open Access
113 Citations
18,791 Views
46 Pages

Optical Fiber Sensing Using Quantum Dots

  • Pedro Jorge,
  • Manuel António Martins,
  • Tito Trindade,
  • José Luís Santos and
  • Faramarz Farahi

21 December 2007

Recent advances in the application of semiconductor nanocrystals, or quantumdots, as biochemical sensors are reviewed. Quantum dots have unique optical properties thatmake them promising alternatives to traditional dyes in many luminescence basedbioa...

  • Article
  • Open Access
49 Citations
11,106 Views
12 Pages

Low-Loss Hollow Waveguide Fibers for Mid-Infrared Quantum Cascade Laser Sensing Applications

  • Pietro Patimisco,
  • Vincenzo Spagnolo,
  • Miriam S. Vitiello,
  • Gaetano Scamarcio,
  • Carlos M. Bledt and
  • James A. Harrington

21 January 2013

We report on single mode optical transmission of hollow core glass waveguides (HWG) coupled with an external cavity mid-IR quantum cascade lasers (QCLs). The QCL mode results perfectly matched to the hybrid HE11 waveguide mode and the higher losses T...

  • Communication
  • Open Access
3 Citations
1,520 Views
8 Pages

Attosecond-Level Delay Sensing via Temporal Quantum Erasing

  • Fabrizio Sgobba,
  • Andrea Andrisani,
  • Stefano Dello Russo,
  • Mario Siciliani de Cumis and
  • Luigi Santamaria Amato

8 September 2023

Traditional Hong-Ou-Mandel (HOM) interferometry, insensitive to photons phase mismatch, proved to be a rugged single-photon interferometric technique. By introducing a post-beam splitter polarization-dependent delay, it is possible to recover phase-s...

  • Article
  • Open Access
3 Citations
2,493 Views
16 Pages

Portable Device for Multipurpose Research on Dendritic Yanson Point Contacts and Quantum Sensing

  • Andriy Savytskyi,
  • Alexander Pospelov,
  • Anna Herus,
  • Volodymyr Vakula,
  • Nataliya Kalashnyk,
  • Eric Faulques and
  • Gennadii Kamarchuk

Quantum structures are ideal objects by which to discover and study new sensor mechanisms and implement advanced approaches in sensor analysis to develop innovative sensor devices. Among them, one of the most interesting representatives is the Yanson...

  • Review
  • Open Access
60 Citations
14,010 Views
19 Pages

31 July 2017

For applications in sensing and cavity-based quantum computing and metrology, open-access Fabry-Perot cavities—with an air or vacuum gap between a pair of high reflectance mirrors—offer important advantages compared to other types of microcavities. F...

  • Article
  • Open Access
20 Citations
3,922 Views
18 Pages

Remote Sensing Image Scene Classification in Hybrid Classical–Quantum Transferring CNN with Small Samples

  • Zhouwei Zhang,
  • Xiaofei Mi,
  • Jian Yang,
  • Xiangqin Wei,
  • Yan Liu,
  • Jian Yan,
  • Peizhuo Liu,
  • Xingfa Gu and
  • Tao Yu

21 September 2023

The scope of this research lies in the combination of pre-trained Convolutional Neural Networks (CNNs) and Quantum Convolutional Neural Networks (QCNN) in application to Remote Sensing Image Scene Classification(RSISC). Deep learning (RL) is improvin...

  • Review
  • Open Access
25 Citations
5,762 Views
26 Pages

30 May 2023

The present review article investigates the prospective utilisation of quantum dot–polymer nanocomposites in the context of ensuring food safety. The text pertains to the advancement of nanocomposites, encompassing their distinctive optical and...

  • Article
  • Open Access
2,615 Views
11 Pages

Stable Single-Mode 795 nm Vertical-Cavity Surface-Emitting Laser for Quantum Sensing

  • Yongli Wang,
  • Yang Zhang,
  • Chuanchuan Li,
  • Jian Li,
  • Xin Wei and
  • Lianghui Chen

4 October 2024

Vertical-cavity surface-emitting lasers (VCSELs) are essential for exhibiting single-transverse-mode output characteristics, which are critical for applications in quantum sensing, optical interconnection, and laser printing. In this study, we achiev...

  • Abstract
  • Open Access
2,100 Views
3 Pages

Gas Sensing Capabilities of CuInS2/ZnO Core–Shell Quantum Dot

  • Antonio Orlando,
  • Guglielmo Trentini,
  • Pietro Tosato,
  • Soufiane Krik,
  • Matteo Valt,
  • Andrea Gaiardo and
  • Luisa Petti

Chemoresistive gas sensors are surely one of the easiest and most commonly used methods to monitor the presence of different polluting gases. Nevertheless, there are still several challenges to overcome in order for these sensors to be widely used. I...

  • Article
  • Open Access
5 Citations
3,538 Views
13 Pages

Carbon quantum dots (CQDs) have already demonstrated their utility as lubricant additives, and non-contact temperature sensing based on CQDs offers considerable potential for condition monitoring in mechanical, electrical, and other fields, as well a...

  • Article
  • Open Access
15 Citations
3,721 Views
15 Pages

14 November 2024

The detection of heavy metal ions and organic pollutants from water sources remains critical challenges due to their detrimental effects on human health and the environment. Herein, a nitrogen and sulfur co-doped carbon quantum dot (NS-CQDs) fluoresc...

  • Review
  • Open Access
153 Citations
14,185 Views
25 Pages

Fluorescent Carbon Quantum Dots—Synthesis, Functionalization and Sensing Application in Food Analysis

  • Mingfei Pan,
  • Xiaoqian Xie,
  • Kaixin Liu,
  • Jingying Yang,
  • Liping Hong and
  • Shuo Wang

Carbon quantum dots (CQDs) with stable physicochemical properties are one of the emerging carbon nanomaterials that have been studied in recent years. In addition to the excellent optical properties such as photoluminescence, photobleaching resistanc...

  • Article
  • Open Access
6 Citations
2,790 Views
13 Pages

1 October 2024

Toxic gases emitted by industries and vehicles cause environmental pollution and pose significant health risks which are becoming increasingly dangerous. Therefore, the detection of the toxic gases is crucial. The development of gas sensors with high...

  • Article
  • Open Access
4 Citations
3,026 Views
16 Pages

Portable Instrument for Monitoring Environmental Toxins Using Immobilized Quantum Dots as the Sensing Material

  • Francisco J. Ferrero,
  • Marta Valledor,
  • Juan C. Campo,
  • Alberto López,
  • Pablo Llano-Suárez,
  • María T. Fernández-Arguelles,
  • José M. Costa-Fernández and
  • Ana Soldado

7 May 2020

A portable instrumental system was designed for the routine environmental monitoring of toxic volatile organic compounds (VOCs) in atmospheric conditions based on changes in the photoluminescence emission of semiconductor nanoparticles (quantum dots)...

  • Article
  • Open Access
3 Citations
2,620 Views
18 Pages

Multiclass Classification of Metrologically Resourceful Tripartite Quantum States with Deep Neural Networks

  • Syed Muhammad Abuzar Rizvi,
  • Naema Asif,
  • Muhammad Shohibul Ulum,
  • Trung Q. Duong and
  • Hyundong Shin

7 September 2022

Quantum entanglement is a unique phenomenon of quantum mechanics, which has no classical counterpart and gives quantum systems their advantage in computing, communication, sensing, and metrology. In quantum sensing and metrology, utilizing an entangl...

  • Article
  • Open Access
22 Citations
7,118 Views
10 Pages

Tunable Microcavity-Stabilized Quantum Cascade Laser for Mid-IR High-Resolution Spectroscopy and Sensing

  • Simone Borri,
  • Mario Siciliani de Cumis,
  • Giacomo Insero,
  • Saverio Bartalini,
  • Pablo Cancio Pastor,
  • Davide Mazzotti,
  • Iacopo Galli,
  • Giovanni Giusfredi,
  • Gabriele Santambrogio and
  • Anatoliy Savchenkov
  • + 6 authors

17 February 2016

The need for highly performing and stable methods for mid-IR molecular sensing and metrology pushes towards the development of more and more compact and robust systems. Among the innovative solutions aimed at answering the need for stable mid-IR refe...

  • Review
  • Open Access
16 Citations
3,576 Views
25 Pages

Recent Progress on Functionalized Graphene Quantum Dots and Their Nanocomposites for Enhanced Gas Sensing Applications

  • Thivyah Balakrishnan,
  • Suresh Sagadevan,
  • Minh-Vien Le,
  • Tetsuo Soga and
  • Won-Chun Oh

19 December 2023

Gas-sensing technology has witnessed significant advancements that have been driven by the emergence of graphene quantum dots (GQDs) and their tailored nanocomposites. This comprehensive review surveys the recent progress made in the construction met...

  • Review
  • Open Access
3 Citations
2,400 Views
29 Pages

Quantum biosensors offer a promising route to overcome the sensitivity and specificity limitations of conventional biosensing technologies. Their ability to detect biochemical signals at extremely low concentrations makes them strong candidates for n...

  • Review
  • Open Access
5 Citations
6,858 Views
42 Pages

Quantum Correlation Enhanced Optical Imaging

  • Siddhant Vernekar and
  • Jolly Xavier

Quantum correlations, especially time correlations, are crucial in ghost imaging for significantly reducing the background noise on the one hand while increasing the imaging resolution. Moreover, the time correlations serve as a critical reference, d...

  • Article
  • Open Access
17 Citations
4,154 Views
13 Pages

24 February 2021

Over the last decade, we have been witnessing the rise of two-dimensional (2D) materials. Several 2D materials with outstanding properties have been theoretically predicted and experimentally synthesized. 2D materials are good candidates for sensing...

  • Article
  • Open Access
780 Views
14 Pages

30 September 2025

We report combined scanning probe microscopy and electrical measurements to investigate local electronic transport in reduced graphene oxide (rGO) devices. We demonstrate that quantum transport in these materials can be significantly tuned by the ele...

  • Article
  • Open Access
4 Citations
2,675 Views
10 Pages

5 January 2023

A graphene-based capacitive NO2 sensing device was developed by utilizing the quantum capacitance effect. We have used a graphene field-effect transistor (G-FET) device whose geometrical capacitance is enhanced by incorporating an aluminum back-gate...

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