Source: Light11 · Auf Lager Power Supplies for Lamps Understanding Power Supplies for Lamps Constant Voltage Operation Incandescent lamps are typically operated with a constant electrical voltage. Power supplies like transformers or switching power supplies can be used to modify and stabilize the voltage level to match the lamp’s requirements. Constant Current Mode Gas discharge lamps often […]
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Source: COORNETs – Technische Universität München Understanding Multiphoton Absorption in Photonics Understanding Multiphoton Absorption in Photonics Introduction to Multiphoton Absorption In the realm of photonics, multiphoton absorption is a fascinating nonlinear optical process that occurs in dielectric materials and semiconductors. This phenomenon allows for electronic excitations even when individual photon energies are insufficient to bridge
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Source: HBM Understanding Optical Strain Sensors Understanding Optical Strain Sensors Introduction to Optical Strain Sensors Optical strain sensors, also known as strain gauges, are devices used to measure mechanical deformation caused by compressive or tensile forces. These sensors predominantly utilize fiber optics technology, offering a range of advantages over traditional mechanical and electronic strain sensors.
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Source: YouTube Understanding Color Centers in Crystalline Materials Understanding Color Centers in Crystalline Materials Color centers are fascinating imperfections within crystalline materials that result in unique light absorption and emission properties. These defects can significantly alter the electronic properties of crystals, leading to a variety of optical phenomena. What are Color Centers? Color centers, also
Source: DTU Electro Understanding Gas Lasers: A Comprehensive Overview Introduction to Gas Lasers Gas lasers are a type of laser that utilize gases as the gain medium. The laser-active entities in gas lasers can be single atoms, ions, or molecules, often mixed with other substances for auxiliary functions. The gas in a gas laser is
Source: ResearchGate Understanding Single-mode Operation in Lasers Understanding Single-mode Operation in Lasers Single-mode Operation Explained Single-mode operation in lasers can refer to two main concepts: Single-Transverse-Mode Operation When a laser operates in a single transverse resonator mode, typically a Gaussian mode, it is said to be in single-transverse-mode operation. This results in diffraction-limited beam quality.
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Source: YouTube Understanding Vacuum Noise in Quantum Optics Understanding Vacuum Noise in Quantum Optics Vacuum noise is a fundamental concept in quantum optics, arising from the inherent fluctuations of the electric field in a vacuum state. Even when there is no photon present, these zero-point fluctuations exist, contributing to what is known as vacuum noise.
Source: Nature Understanding Upconversion Lasers Understanding Upconversion Lasers Introduction Upconversion lasers are a type of laser where the emitted photon energy is higher than that of the pump source, resulting in a shorter wavelength. This phenomenon is achieved through upconversion pumping schemes, where multiple pump photons are used to transfer a laser ion to a
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Source: ResearchGate Propagation Losses in Optical Systems Understanding Propagation Losses in Optical Systems Introduction When light travels through a transparent medium, it can experience various losses that reduce its optical power. These losses are primarily due to absorption, scattering, and other physical effects. Causes of Propagation Losses Light can be absorbed by the medium, leading
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Source: YouTube Understanding VCSELs: A Comprehensive Guide Understanding VCSELs: A Comprehensive Guide Introduction to VCSELs Vertical-Cavity Surface-Emitting Lasers (VCSELs) are semiconductor lasers that have a unique design with a monolithic laser resonator. Unlike traditional laser diodes, VCSELs emit light perpendicular to the chip surface, allowing for efficient light emission. Working Principle of VCSELs VCSELs utilize
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