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Background/Aim: The aim of this in vitro study was to investigate the influence of irradiation cycles and resting periods, on thermal effects on the external root surface during root canal irradiation of two diode laser ...

Abstract Background Sjögren’s disease is a systemic autoimmune disease characterized by dysfunction of the salivary and lacrimal glands, leading to xerostomia and xerophthalmia. Case presentation A 55-year-old Hispani...

Here we developed a novel wavelength-switchable visible continuous-wave (CW) Pr3+:YLF laser around 670 nm. In single-wavelength laser operations, the maximum output powers of 2.60 W, 1.26 W, and 0.21 W, the maximum slope...

Photonic crystal surface-emitting lasers (PCSELs) are promising light sources with numerous advantages, including vertical emission, single-mode operation, and high output power. However, the fabrication of PCSEL devices...

Nasal rhinophyma represents the phymatous stage of rosacea. The primary concern in patients with giant rhinophyma is social isolation, as – apart from the pronounced cosmetic disfigurement – it does not cause other p...

Germanium selenide nanoplates (GeSe NPs) are considered to have broadband nonlinear optical (NLO) properties and great potential for applications in nanophotonic devices. In this work, we systematically studied the NLO r...

In this study, a diode characteristic testing will be conducted, namely the characteristics of forward bias and reverse bias using Multisim software. Diode components are mostly applied to electronic circuits, so a simul...

Ultracompact chip-integrated all-optical diode is realized experimentally in a plasmonic microstructure, consisting of a plasmonic waveguide side-coupled two asymmetric plasmonic composite nanocavities covered with a mul...

Background: Chronic periodontitis is a biofilm-induced inflammatory disease leading to progressive destruction of periodontal supporting tissues. Mechanical debridement by scaling and root planing (SRP) remains the gold ...

Metal-halide perovskite light-emitting diodes (PeLEDs) are considered as new-generation highly efficient luminescent materials for application in displays and solid-state lighting. Since the first successful demonstratio...

Visible-light communication (VLC) stands as a promising component of the future communication network by providing high-capacity, low-latency, and high-security wireless communication. Superluminescent diode (SLD) is pro...

ABSTRAC: A comprehensive numerical model to simulate self-heating effects of laser diode under continuous-wave operation is presented. The model is self-consistently accounts for the close interaction between optical, el...

Hong Loi Nguyen, Nguyet Tu Ha Anh Odonto-Stomatology Center, Hue Central Hospital, Hue, VietnamCorrespondence: Hong Loi Nguyen, Odonto-Stomatology Center, Hue Central Hospital, 16 Le Loi Street, Hue, Vietnam, Tel +849134...

Abstract In this paper, we report the recent progress made in the design and development of a miniature solid-state system, consisting from a bar laser diode and a slab of Nd:YAG crystal. Single longitudinal mode, stable...

Abstract In this paper, an in-depth study of the electrical and optical characteristics of Polymer Light Emitting Diodes ITO/PEDOT: PSS/DP-PPV derivatives/Al(Ca) is presented. Three polymer materials are considered; poly...

The new paradigm of parity-time symmetry in quantum mechanics has readily been applied in the field of optics with numerous demonstrations of exotic properties in photonic systems. In this work, we report on the implemen...

In this work, we report our efforts to develop a novel inorganic halide perovskite-based bi-functional light-emitting and photo-detecting diode. The bi-functional diode is capable of emitting a uniform green light, with ...

We report a new strategy for the design of organic light emitting diodes (OLEDs), where nanoscale OLEDs are fabricated into a large-area periodic array with their emission propagating along the active layer and being cou...

All-inorganic CsPbBr3 perovskite is an attractive emission material for high-stability perovskite light-emitting diodes (PeLEDs), due to the high thermal and chemical stability. However, the external quantum efficiencies...

By incorporating ultrathin (80, low correlated color temperature of

All-inorganic CsPbBr3 perovskite quantum dots (QDs) have received great attention in white light emission because of their outstanding properties. However, their practical application is hindered by poor stability. Herei...

Abstract High power bar laser diodes, with CW optical power output were studied experimentally. A novel mounting was designed to bring the coolant as close as possible to the laser bar in order to improve the bar laser d...

Low-level light therapy (LLLT), which is sometimes included in phototherapy, is an effective therapeutic strategy to improve wound healing and reduce pain, inflammation and swelling. Nowadays, new sources of light, such ...

The paper presents the design of pressure sensor with a frequency output signal that is based on the physical processes in a resonant tunnel diode under the action of pressure. The use of devices with negative differenti...