Stimulated emission threshold in thick GaN epilayers: interplay between charge carrier and photon dynamics

Наргелас, С.; Mickevičius, J.; Kadys, A.; Jarašiūnas, K.; Malinauskas, T.

doi:10.1016/j.optlastec.2020.106624

Cited by 6 publications

(2 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Some studies have shown that MQW diodes can not only be used for lighting and displays in the traditional sense but can also be used for the modulation and perception of light, which is termed the simultaneous emission-detection phenomenon. − Based on this phenomenon, we have confirmed that the communication performance of such diodes meets the requirements of duplex video transmission, and after large-scale integration, optical signals containing on–off information can be scanned and detected . With the advent of the era of high-speed communication, optical communication technology, a supplementary means of communication, has also made great progress. − The information exchange in this work is based on light, so it is suitable for the experimental scheme of traditional optical communication. In terms of hardware, we can carry out dual-function simultaneous driving of the emission and detection mode. − In terms of software, we can explore the signal restoration algorithm. − However, these findings fall short of the next generation of smart screens because the binarization of detection values leads to a quantization order for imaging grayscale that is too small, which is a problem that we have not discussed previously.…”

Section: Introductionmentioning

confidence: 72%

Multilevel Simultaneous Lighting–Imaging System

Qin

et al. 2023

ACS Omega

View full text Add to dashboard Cite

In a III-nitride multiple quantum well (MQW) diode biased with a forward voltage, electrons recombine with holes inside the MQW region to emit light; meanwhile, the MQW diode utilizes the photoelectric effect to sense light when higher-energy photons hit the device to displace electrons in the diode. Both the injected electrons and the liberated electrons are gathered inside the diode, thereby giving rise to a simultaneous emission-detection phenomenon. The 4 × 4 MQW diodes could translate optical signals into electrical ones for image construction in the wavelength range from 320 to 440 nm. This technology will change the role of MQW diode-based displays since it can simultaneously transmit and receive optical signals, which is of crucial importance to the accelerating trend of multifunctional, intelligent displays using MQW diode technology.

show abstract

Section: Introductionmentioning

confidence: 72%

Multilevel Simultaneous Lighting–Imaging System

Qin

et al. 2023

ACS Omega

View full text Add to dashboard Cite

show abstract

“…These studies are associated with multifunctional devices that can perform tasks such as energy storage, communication, and sensing. An increasing number of studies are exploring the potential of MQW III-nitride diodes. − There are few storage interfaces that achieve great function and low cost. − The development of next-generation memory urgently needs to overcome the constraints of electrical transmission and realize a faster and less interference transmission scheme, and in this regard, the touchless optical I/O interface is a new scheme. , Oh et al reported a double heterojunction nanorod device that can be used for simultaneous light emission and detection. Using a dual-functional perovskite diode, Shan et al proposed a bidirectional optical link between two identical devices.…”

Section: Introductionmentioning

confidence: 99%

Touchless Input/Output Interface for Device-to-Device Communication

Fu,

Wang,

et al. 2023

ACS Omega

View full text Add to dashboard Cite

Multiple quantum well (MQW) III-nitride diodes show selectable functionalities of light-emitting and light-detecting behaviors, enabling direct touchless device-to-device communication. Here, we propose and demonstrate a touchless input/output (I/O) interface using a single MQW III-nitride diode. By integrating an MQW IIInitride diode with a memory via a control circuit, optical signals are converted into electrical ones to be written into a memory, and consequently, electrical information is read out from the memory to be translated into optical signals for visible light communication (VLC). The MQW III-nitride diode can not only lead to a touchless ″writing″ action but also offer a ″reading″ process through light. Such touchless I/O interface would provide new forms of interactivity for device-to-device communication technologies.

show abstract

Chip-integrated optical fiber force sensing system

Fu,

Shi,

Wang

et al. 2023

Journal of Applied Physics

View full text Add to dashboard Cite

The quantum well diode (QWD) performs a dual role, functioning both as an emitter and a detector due to its unique feature of spectral overlap between emission and detection spectra. This dual functionality positions QWDs as promising candidates in the realm of multifunctional sensors. Furthermore, the well-established maturity of optical fiber communication, grounded in its intrinsic property of total reflection, makes it an ideal transmission medium for QWD sensing signals. Leveraging the coexisting emission and detection capabilities of QWDs, we have constructed a sensing system in this article. This system utilizes a QWD, which is stimulated to emit light, with the emitted light traveling through a specified length of optical fiber. A specialized load-bearing film, featuring an aluminum membrane on its rear to act as a mirror and an object of known weight on its front, induces deformation in the film, thereby altering the characteristics of the reflected light. This modulated light is subsequently captured by the QWD via the optical fiber, enabling the computation of the weight of the object. In this article, the QWD's emission peak is around 522 nm, and its detection range extends from 370 to 530 nm. Furthermore, by employing the appropriate approach, integrating QWD with optical fibers can be extended to sensing and measuring various physical quantities such as temperature, solution concentration, wind speed, and more. The advantages of QWDs include cost-effectiveness, multifunctionality, portability, and environmental friendliness. This technology represents a promising avenue for sensor control in the era of the Internet of Things.

show abstract

Stimulated emission threshold in thick GaN epilayers: interplay between charge carrier and photon dynamics

Cited by 6 publications

References 34 publications

Multilevel Simultaneous Lighting–Imaging System

Multilevel Simultaneous Lighting–Imaging System

Touchless Input/Output Interface for Device-to-Device Communication

Chip-integrated optical fiber force sensing system

Contact Info

Product

Resources

About