Source: SIOS Meßtechnik GmbH Helium-Neon Lasers: A Comprehensive Overview Helium-Neon Lasers: A Comprehensive Overview Introduction Helium-neon (He-Ne) lasers are a common type of gas lasers that operate continuously. They were the first gas lasers demonstrated back in 1961. These lasers emit red light at 632.8 nm with good beam quality and are typically used at […]
Helium–Neon Lasers Read More »
Source: Nature Fourier Transform Spectroscopy Understanding Fourier Transform Spectroscopy Operation Principle Fourier transform spectroscopy is a method used in various spectroscopic techniques, especially in infrared spectroscopy. It involves computing an optical spectrum from raw data by applying a Fourier transform algorithm. The method is based on measuring the interference signal in the time domain using
Fourier Transform Spectroscopy Read More »
Source: Wavelength Opto-Electronic The Significance of the Mid-Infrared Spectral Region The mid-infrared spectral region is crucial for optical spectroscopy due to its numerous absorption lines that are characteristic of various molecules. This region, particularly the “fingerprint region” spanning wavelengths between 7 μm and 11 μm, plays a vital role in distinguishing molecules and measuring their
Mid-Infrared Spectrometers Read More »
Source: ResearchGate Understanding Single-Frequency Lasers Understanding Single-Frequency Lasers Introduction A single-frequency laser is a type of laser that operates on a single resonator mode, resulting in a very narrow linewidth and long coherence length. This characteristic is crucial for various applications in optics and photonics. Emission Linewidth The emission linewidth of a single-frequency laser can
Single-Frequency Operation Read More »
Source: link.springer.com Understanding Thermal Lensing in Laser Systems Introduction to Thermal Lensing Thermal lensing is a phenomenon that occurs in high-power lasers due to the inhomogeneous heating of the gain medium, such as a laser crystal. This heating leads to a thermal lens effect, causing changes in the refractive index of the medium, which can
Source: LED professional Photometry: Understanding Light Measurements Photometry: Understanding Light Measurements Wavelength-dependent Sensitivity of the Human Eye The human eye’s sensitivity to light plays a crucial role in photometry. The eye has cone cells for color vision under normal lighting conditions (photopic vision) and rod cells for low-light conditions (scotopic vision). The eye’s spectral sensitivity
Exploring Advanced Laser Technologies and Their Applications In the realm of modern technology, lasers have become an indispensable tool across various industries. From medical applications to telecommunications, the versatility and precision of laser technology continue to revolutionize how we interact with the world. This blog post delves into some of the advanced laser technologies and
Understanding Phonons Read More »
Source: Edmund Optics Understanding Waveplates: A Comprehensive Overview Waveplates, also known as retardation plates, are essential optical elements used in various applications such as polarimetry, laser research, spectroscopy, and nonlinear optics. They manipulate the polarization state of light passing through them, making them crucial in controlling light properties. Types of Waveplates Waveplates come in different
Source: Nature Blog Post: Understanding Pump-Probe Measurements Understanding Pump-Probe Measurements Overview Pump-probe measurements are a powerful technique used in ultrafast laser spectroscopy to study fast processes in materials. This method involves hitting a sample with a pump pulse to generate an excitation, followed by a probe pulse to analyze the sample’s response at a later
Pump–Probe Measurements Read More »
Source: Guardian Glass Understanding Reflectivity in Optics Reflectivity in Optics Definition Reflectivity in optics refers to the ratio of reflected optical power to the incident optical power at a surface, such as an interface between two optical media. It is commonly used for cases involving specular reflections on flat, unstructured surfaces. Reflectivity vs. Reflectance In
