BBO Crystals Supporting the Research of Quantum Entanglements
This article describes the intricacies of quantum entanglements, the application of Bell inequalities, and the crucial role played by Beta Barium Borate (BBO) crystals in the phenomenon of Spontaneous Parametric Down-Conversion (SPDC).
Scintillation Screens for X-ray Imaging
This article describes the working principle of scintillators, what exactly a scintillation screen is, their vital role in X-ray imaging, and the various scintillation materials employed in these screens.
Optical Filters
The article describes the characteristics of different types of optical filters including absorptive filters, interference filters, polarization filters, bandpass filters, notched filters, dichroic filters, neutral density filters, laser line filters, explained their working principle, and stated the common applications of optical filters.
Spherical Lenses vs. Aspheric Lenses
This article is a comprehensive comparison between spherical lenses and aspheric lenses, where the advantages of both lens categories are listed and evaluated.
BBO Crystals and Its Applications
This article describes the applications of BBO Crystals (beta barium borate crystals), including Optical Nonlinear Frequency Conversion (Harmonic Generation and OPA, OPO), Electro-optical Modulations (EOM), and Spontaneous Parametric Down Conversion (SPDC).
Lens Selection Guide
This article enumerated the different lens classifications including plano-convex lens, plano-concave lens, double-convex lens, double-concave lens, meniscus lens, ball/half-ball lens, achromatic doublet lens, cylindrical plano-convex lens/plano-concave lens, rod lens, and aspheric lens, exploring their characteristics, and the appropriate context to use them.
Germanium (Ge) Windows
This article first discussed the prospect and advantages of Germanium as Infrared optical components, including germanium windows, lenses, detectors, etc, and the fabrication method of single-crystal germanium to arrive at a more elaborate analysis of the merits and deflects of Germanium windows.
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.