A narrowband filter is an optical filter designed with a narrow bandwidth. It is a type of bandpass filter that can selectively transmit light in a very narrow specific wavelength range while blocking light of other wavelengths. Its core feature is that the bandwidth is…
In the field of optics, optical filters are endowed with unique optical properties through their special construction materials and film materials, and different optical filters have different actual performance. Today we will talk about a classification of cut-off filters, long-wave pass filters. Among various types…
A dichroic mirror is a wavelength-selective optical component designed to reflect one spectral region while transmitting another. Unlike a conventional mirror that is intended to reflect a broad wavelength range, a dichroic mirror uses a carefully designed multilayer dielectric coating to control how different wavelengths…
In the intricate realm of optics, a beam splitter stands as a fundamental and versatile optical component. It plays a pivotal role in manipulating light, enabling a wide array of applications across various scientific, technological, and industrial fields. Definition and Working Principle A beam splitter…
The laser damage threshold of an optical coating, usually referred to as the laser-induced damage threshold or LIDT, is not determined by the coating material alone. It depends on the laser wavelength and temporal regime, beam characteristics, multilayer design, coating defects and absorption, substrate preparation,…
A ghost image in a beamsplitter is a second, weaker image formed by light that reached the detector along an unintended optical path inside the component. In the large majority of cases the path is a reflection from the second surface of a plate beamsplitter,…
A short-pass filter, also called a low-pass filter in some cases, is an optical device that allows shorter wavelengths of light to pass through while blocking longer wavelengths. This type of filter is essential in a variety of scientific, industrial, and technological applications that require…
CIOE 2021 (The 23rd China International Optoelectronic Exposition), as the world’s leading optoelectronic exhibition, will be held at Shenzhen World Exhibition & Convention Center on September 1-3, 2021. GiAi welcome your visting our booth No:9A84 & 13B40 Main service :Fabricate your lenses ,optical filters,window glass,prism…
The exhibition focuses on the optical application of laser processing technology, and professionals from 55 countries and regions come to visit.Giai photonics has carefully prepared to present China’s optical component processing technology and optical thin film technology to the world. The exhibits in this exhibition…
Verifying laser line rejection for Raman spectroscopy means proving three separate things, not one: the optical density at the laser wavelength under the angle and beam geometry the filter actually sees, the spectral distance between the laser line and the point where transmission recovers (expressed…
Use a V-coat when the optic sees one laser line and you need the last fraction of a percent of transmission. Use a broadband anti-reflection (BBAR) coating when the optic has to work across a spectral band, or when a second wavelength such as an…
An ultra narrow bandpass filter is used when an optical system needs to transmit a tightly defined wavelength region while strongly attenuating light outside that region. Typical ultra narrow bandpass filter applications include laser-line cleanup, LiDAR and active optical sensing, selected fluorescence channels, analytical spectroscopy,…
