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Categories of Optical Crystalline Birefringence Polarizers
An Optical Polarizer is an optical element that screens light and split it into two beams with a specific ratio according to its polarization state. This article unfolds a basic concept and working principles of different categories of birefringent crystal polarizers including Glan polarizers (Glan Thompson, Glan Taylor), Wollaston Polarizers, and Rochon Polarizers. In the text, we also introduced two kinds of optical parts related to polarization: Polarization Rotator and Depolarizer.
The Prospect and Advantages of Infrared Germanium(Ge) Optics
This article discussed the material properties of single-crystal germanium (Ge) and the prospect of infrared germanium optics(germanium windows, germanium lens, germanium domes) through stating and evaluating the advantages and drawbacks of Ge optics.
Harmonic Generation
This article explained what is harmonic generation (or frequency conversion), which is the result of the utilization of nonlinear optical effects, and other contents including type I, type II phase matching.
Chromatic Aberration, Field Curvature, Distortion, Astigmatism
This article is an introduction to different kinds of optical aberrations including Chromatic Aberration, Field Curvature, Distortion, and Astigmatism, the basic definition and the principle of, and how to correct these aberrations are explained in the text.
NaI(Tl) Scintillators for Well-logging Applications
This article introduces the material properties and the working principles of NaI(Tl)/Thallium Doped Sodium Iodide Scintillators for well-logging applications.
Advantages and Applications of Sapphire Windows
Sapphire Windows excel in windows made from other glass counterparts, especially in the aspects of superior surface hardness, durable qualities, and versatile functionalities. This article discusses the advantages and applications of sapphire windows.
Exploration of Current Sapphire Window Production Techniques
This article is an in-depth exploration of the existing sapphire window production techniques and the prospect of innovation in the sapphire window production market. The article covers the growth method of sapphire crystals, the entire procedure, and relevant techniques of the cutting, chamfering, grinding, polishing, and cleaning of sapphire windows.
Passive Thermal Imaging and C-UAS Techniques
Both state and non-state parties face the imposing threats from the weaponization and illegal intrusion of UAS. The development of Counter-UAS, or C-UAS, in particular, Counter-Small UAS to detect, track, and intercept drones has become an urgent mission. The article discusses the challenges in the current C-UAS market and evaluates various approaches incorporated into the C-UAS, including LWIR, MWIR Passive Thermal Imaging and other approaches like radar, visual cameras, SWIR imaging.
Selection Tutorial for Lens Assemblies
This is a basic tutorial and guide to help you understand some important glossaries when you are selecting Optical Lenses and Camera Lenses.
LWIR Imaging VS MWIR Imaging, Which is Better?
This article is a thorough comparison of the differences and features of LWIR and MWIR thermal imaging cameras, comparing the emittance and thermal contrast in the two spectral regions, the impact of climate/thermal effects, LWIR and MWIR thermal imaging camera lenses, costs, and applications.