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Introduction to Strontium Titanate (SrtiO3) Substrate
Strontium titanate crystal sheets are made from strontium titanate crystals. Strontium titanate (SrTiO₃) is a perovskite crystal with a cubic crystal system and exhibits excellent optical, electrical, and dielectric properties. This crystal has a high refractive index, a wide transmittance range, a high dielectric constant, and good thermal and chemical stability, making it an important functional crystal material.
Introduction to Lithium Niobate (LiNbO3) Substrates
Lithium niobate substrates are made of lithium niobate crystals. Lithium niobate crystals, abbreviated as LN, belong to the trigonal system and have an ilmenite-type (distorted perovskite-type) structure. Lithium niobate crystals possess multiple properties, including piezoelectric, ferroelectric, optoelectronic, nonlinear optical, and thermoelectric properties.
Sapphire (Aluminum Oxide, Al2O3) Substrate Properties
Aluminum oxide substrates are made of synthetic aluminum oxide crystals. Synthetic aluminum oxide crystals, with the chemical formula Al2O3, belong to the trigonal system and exhibit high hardness, excellent thermal stability, chemical inertness, and electrical insulation.
Yttrium-stabilized zirconia crystal (YSZ)-Introduction
Learn about Yttrium-stabilized zirconia (YSZ) crystals: structure, properties, advantages, and wide applications in fuel cells, sensors, optics, and high-temperature engineering. A comprehensive introduction to stabilized zirconia crystals.
Lanthanum Aluminate (LaAlO3)
Lanthanum aluminate crystals, with the chemical formula LaAlO3 (LAO), belong to the hexagonal system and have a distorted perovskite structure. Lanthanum aluminate crystals have excellent mechanical strength, thermal stability, and chemical stability, and exhibit good lattice compatibility with a variety of functional oxide materials, such as high-temperature superconducting and ferroelectric thin films.
Instant Guide-Important Specifications for Ultrafast Optics
Ultrafast lasers, also interchangeably called ultrashort lasers, are defined as pulsed lasers with a pulse width of picoseconds or less than 1 picosecond (1 ps = 1 × 10^-12 s). They have been applied and are showing promise in areas such as laser drilling/cutting and micromachining. In this blog, we break down the five critical parameters you should evaluate before purchasing ultrafast optics, such as mirrors, lenses, windows, or dispersion compensation elements. We give you guidance on the following specifications: 1. The Wavelength Range, 2.Dispersion, 3. Dispersion Compensation, 4. Average Power, Fluence, Peak Power, 5. Laser Induced Damage Threshold, 6.Angle of Incidence, 7. Polarization, 8. Surface Specification.
The Developments and Applications of Ultrafast Lasers
This article states the development of ultrafast lasers, the evolution from dye lasers to Ti:Sapphire solid state lasers, and the realization of PW peak power using chirped pulse amplification technologies; the article also introduces the applications of ultrafast lasers in microprocessing, spectroscopy, 3D nano printing, etc.
Learning About The Physics of Ultrafast Lasers
This article gives a comprehensive introduction to the physics behind ultrafast lasers, including the definition of ultrafast lasers, their characteristics (spectral bandwidth and peak power), and the techniques (mode-locking and chirped pulse amplification) used to produce ultrafast lasers.
Understanding Laser Optics 1: The Physics of Lasers
In today’s article from Shalom EO, as the first lesson from the series of understanding laser optics topic, we will begin with the very fundamental physics of lasers, how a laser cavity works.
Dispersion Compensation Chirped Mirrors
Dispersion compensation for ultrafast lasers is to introducing a negative GDD that cancels out the positive GDD that results from chromatic dispersion. Dispersion compensation is critical for femtosecond ultrafast lasers to preserve the temporal profile and peak power of laser pulses. Chirped mirrors are a special dispersive Bragg mirror coated with alternating dielectric thin films of high and low refractive indices, and the thickness of the thin films becomes thinner towards the surface to provide larger group delay dispersion for longer wavelengths.