Electromagnetically induced transparency based quantum well infrared photodetectors

Mukherjee, Rohit; Konar, S.

doi:10.1016/j.jlumin.2022.119176

Cited by 4 publications

(3 citation statements)

References 39 publications

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“…This phenomenon has not only garnered immense interest but has also paved the way for diverse applications across various mediums. EIT and its associated effects extends its influence into other domains, encompassing quantum wells [20][21][22] and quantum dots [23,24]. Furthermore, its impact has been felt in materials such as graphene [25][26][27], molecular magnets [28], and nitrogenvacancy (NV) centers [29].…”

Section: Introductionmentioning

confidence: 99%

Dynamics of induced optical torque via optical vortex light

Askar,

Jasim,

Al-Rubaye

et al. 2024

Laser Phys. Lett.

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This paper investigates the dynamics of induced torque in Nitrogen-Vacancy (NV) centers interacting with two weak optical vortex beams as well as a strong control field, exploring the impact of different system parameters such as control field intensity, detuning, magnetic field, and vortex beam strength. We find a dispersive torque behavior, indicating the sensitivity of NV centers to control parameters. Magnetic field induces level splitting, leading to a transformative effect on torque, with notable enhancements observed at specific intensities. Additionally, non-resonant torque is explored, demonstrating the controllability of torque peaks through magnetic field manipulation. Unequal strengths of vortex beams is found to yield substantial enhancements in torque. These results provide crucial insights into the induced torque dynamics in NV centers, presenting opportunities for optimized torque-based applications in quantum systems.

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Section: Introductionmentioning

confidence: 99%

Dynamics of induced optical torque via optical vortex light

Askar,

Jasim,

Al-Rubaye

et al. 2024

Laser Phys. Lett.

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“…To date, there are many materials that have been used to manufacture photodetectors, including traditional HgCdTe photodetectors, quantum wall infrared photodetectors, and type-II strained layer superlattice, and quantum dot (QD) infrared photodetectors [ 5 , 6 , 7 , 8 ]. The low-dimensional nanocrystallization of these materials can effectively improve the response and detection rate of the devices, marking a new trend in the development of optoelectronic materials.…”

Section: Introductionmentioning

confidence: 99%

A Broadband Photodetector Based on PbS Quantum Dots and Graphene with High Responsivity and Detectivity

et al. 2023

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A high-efficiency photodetector consisting of colloidal PbS quantum dots (QDs) and single-layer graphene was prepared in this research. In the early stage, PbS QDs were synthesized and characterized, and the results showed that the product conformed with the characteristics of high-quality PbS QDs. Afterwards, the photodetector was derived through steps, including the photolithography and etching of indium tin oxide (ITO) electrodes and the graphene active region, as well as the spin coating and ligand substitution of the PbS QDs. After application testing, the photodetector, which was prepared in this research, exhibited outstanding properties. Under visible and near-infrared light, the highest responsivities were up to 202 A/W and 183 mA/W, respectively, and the highest detectivities were up to 2.24 × 1011 Jones and 2.47 × 108 Jones, respectively, with light densities of 0.56 mW/cm2 and 1.22 W/cm2, respectively. In addition to these results, the response of the device and the rise and fall times for the on/off illumination cycles showed its superior performance, and the fastest response times were approximately 0.03 s and 1.0 s for the rise and fall times, respectively. All the results illustrated that the photodetector based on PbS and graphene, which was prepared in this research, possesses the potential to be applied in reality.

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“…Although these detectors offer advantages such as high sensitivity and good stability, they suffer from drawbacks including high manufacturing costs and incompatibility with silicon-based readout integrated circuits and are hindered by intricate epitaxial growth processes, which hinder further advancements in IR detection technology [21][22][23][24]. Building upon this, novel infrared detectors such as the quantum well IR photodetector [25][26][27][28][29][30], type-II superlattice [31][32][33][34][35], infrared detectors based on twodimensional materials [36][37][38][39][40], and quantum dot IR photodetector [41][42][43][44][45][46][47][48] have begun to be extensively investigated.…”

Section: Introductionmentioning

confidence: 99%

Mercury Chalcogenide Colloidal Quantum Dots for Infrared Photodetectors

Hao,

Ma,

Xing

et al. 2023

Materials

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In recent years, mercury chalcogenide colloidal quantum dots (CQDs) have attracted widespread research interest due to their unique electronic structure and optical properties. Mercury chalcogenide CQDs demonstrate an exceptionally broad spectrum and tunable light response across the short-wave to long-wave infrared spectrum. Photodetectors based on mercury chalcogenide CQDs have attracted considerable attention due to their advantages, including solution processability, low manufacturing costs, and excellent compatibility with silicon substrates, which offers significant potential for applications in infrared detection and imaging. However, practical applications of mercury-chalcogenide-CQD-based photodetectors encounter several challenges, including material stability, morphology control, surface modification, and passivation issues. These challenges act as bottlenecks in further advancing the technology. This review article delves into three types of materials, providing detailed insights into the synthesis methods, control of physical properties, and device engineering aspects of mercury-chalcogenide-CQD-based infrared photodetectors. This systematic review aids researchers in gaining a better understanding of the current state of research and provides clear directions for future investigations.

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Electromagnetically induced transparency based quantum well infrared photodetectors

Cited by 4 publications

References 39 publications

Dynamics of induced optical torque via optical vortex light

Dynamics of induced optical torque via optical vortex light

A Broadband Photodetector Based on PbS Quantum Dots and Graphene with High Responsivity and Detectivity

Mercury Chalcogenide Colloidal Quantum Dots for Infrared Photodetectors

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