Laser Science

Photoconductive Detectors

Photoconductive Detectors

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Source: Fosco Connect Photoconductive Detectors in Photonics Understanding Photoconductive Detectors in Photonics Introduction to Photoconductive Detectors Photoconductive detectors are a type of photodetectors based on photoconductive semiconductor materials. They operate by generating non-equilibrium electrical carriers upon absorbing light, which reduces the electrical resistance across two electrodes. Types of Photoconductive Detectors Alternative terms for photoconductive detectors […]

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Transmissivity

Transmissivity

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Source: Optris Understanding Transmissivity in Optics Transmissivity in Optics Definition The transmissivity of a surface in optics is the ratio of transmitted optical power to the incident optical power. It is commonly used for flat unstructured surfaces and is measured with a light beam. Transmissivity vs. Transmittance Transmissivity refers to transmission through a single surface,

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Semiconductor Lasers

Semiconductor Lasers

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Source: Wikipedia Semiconductor Lasers: A Comprehensive Overview Introduction Semiconductor lasers are solid-state lasers that utilize semiconductor materials as their gain medium. These lasers operate based on stimulated emission at an interband transition within the semiconductor material, facilitated by a high carrier density in the conduction band. Physical Mechanism of Gain In semiconductor lasers, gain is

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Pulse Characterization

Pulse Characterization

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Source: ResearchGate Understanding Pulse Characterization in Ultrafast Lasers Pulse Characterization in Ultrafast Lasers Pulse Characterization for Q-switched Lasers Q-switched lasers generate light pulses with specific characteristics. Pulse characterization for Q-switched lasers involves analyzing pulse duration, energy, and other relevant aspects. Pulse Characterization for Mode-locked Lasers Mode-locked lasers produce regular optical pulse trains. Understanding pulse parameters

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Fluorescence Microscopy

Fluorescence Microscopy

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Source: Physik Instrumente Fluorescence Microscopy: A Powerful Imaging Technique Fluorescence microscopy is a widely used technique for capturing microscopic images of samples, especially biological materials. It involves exciting the sample with a focused laser beam, scanning through the sample, collecting the fluorescent light emitted, and processing the data to generate images. Confocal Geometry in Fluorescence

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Effective Refractive Index

Effective Refractive Index

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Source: BYJU’S Understanding Effective Refractive Index in Optical Waveguides Understanding Effective Refractive Index in Optical Waveguides Introduction to Refractive Index The concept of refractive index is fundamental in the field of optics. It describes how light propagates through a medium by quantifying the increase in the wavenumber, which is the phase change per unit length,

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Fiber Connectors

Fiber Connectors

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Source: YouTube Understanding Optical Fiber Connectors Understanding Optical Fiber Connectors Optical fiber connectors are essential components in fiber optic communication systems, providing non-permanent connections between fiber-coupled devices. These connectors are similar to electrical connectors and are used in a variety of applications, including telecommunications and data transmission systems. Components of Fiber Connectors A typical fiber

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Relaxation Oscillations

Relaxation Oscillations

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Source: Radiomuseum The Science Behind Relaxation Oscillations in Lasers Understanding Laser Dynamics When lasers experience disturbances like fluctuations in pump power during operation, they exhibit a phenomenon known as relaxation oscillations. This behavior is common in class B lasers, where the upper-state lifetime is longer than the laser resonator’s damping time. Solid-state lasers and laser

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Pulsed Laser Deposition

Pulsed Laser Deposition

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Source: YouTube Pulsed Laser Deposition Pulsed Laser Deposition Overview Pulsed laser deposition is a technique used to create thin films of various materials. It involves illuminating a solid target with short, high-energy laser pulses in an ultrahigh vacuum chamber. The material ablates and forms a plasma, which is then deposited onto a substrate as a

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Fibers

Fibers

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Source: TVF Inc. Understanding Optical Fibers: The Backbone of Modern Communication Understanding Optical Fibers: The Backbone of Modern Communication Optical fibers are a fundamental component in the realm of photonics, playing a crucial role in the transmission of light over long distances. These slender, flexible strands of glass or plastic are designed to guide light,

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