Source: YouTube Z-scan Measurements Z-scan Measurements: Understanding Kerr Nonlinearity Introduction The z-scan measurement technique is a valuable method for determining the strength of Kerr nonlinearity in optical materials. This nonlinearity, characterized by the nonlinear index, plays a crucial role in various optical phenomena. How Z-scan Measurements Work In a z-scan measurement setup, a sample material […]
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Source: Bitesize Bio Understanding Confocal Microscopy Confocal microscopes are advanced scanning microscopes that offer superior longitudinal (axial) resolution by eliminating image contributions from light outside a thin plane. This technology enables the acquisition of high-quality three-dimensional images, particularly useful for studying transparent biological and medical samples without physically sectioning them. Confocal microscopes play a crucial
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Source: NANOVEA Optical Profilometers: A Comprehensive Guide Understanding Optical Profilometers Introduction Optical profilometers, also known as optical surface profilers, are non-contact instruments used to precisely measure surface profiles by capturing the surface elevation in relation to lateral coordinates over a specific area. Applications of Optical Profilometers Optical profilometers are essential tools in various fields such
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Source: Edinburgh Instruments Understanding Fluorescence Spectroscopy Fluorescence spectroscopy is a technique used to analyze the fluorescence emitted by a sample when it is excited by light. This method is commonly employed to identify substances, determine their concentrations, and study the properties of a medium affecting the fluorescence. Principles of Operation Fluorescence is induced by illuminating
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Source: Wikipedia Reflectometers: A Comprehensive Guide Introduction Reflectometers are essential instruments used for measuring the reflectance of objects, indicating the amount of incident optical power that is reflected. In this context, we will focus on optical reflectometers that assess the reflection of light, typically within the infrared or ultraviolet spectral regions. Free-space Reflectometers Free-space reflectometers
Source: Wikipedia Understanding Refractometers: A Comprehensive Guide What is a Refractometer? A refractometer is a scientific instrument used to measure the refractive index of different materials. The refractive index indicates how much the phase velocity of light is reduced compared to its speed in a vacuum. Refractometers are versatile tools with applications in physics, chemistry,
Source: AZoOptics Spectrophotometers: A Comprehensive Overview Spectrophotometers: A Comprehensive Overview Introduction Spectrophotometers are instruments used to measure the wavelength-dependent optical properties of solutions or solid objects. They are essential tools in various fields, including chemistry, biology, and material science. Types of Spectrophotometers Spectrophotometers are available for different spectral regions: Visible Spectrophotometers (VIS) Ultraviolet and Visible
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Source: Bitesize Bio The World of Laser Microscopy Introduction to Laser Microscopy Laser microscopy is a powerful technique used for generating microscopic images with high resolution. It involves scanning a sample with a laser beam to capture detailed information. Various methods such as scattering, polarization changes, second harmonic generation, and fluorescence excitation are employed to
