コレクション: バンドパスフィルタ

CWL stands for Center Wavelength. It refers to the specific wavelength that is located at the midpoint of the filter's passband, which is the range of wavelengths that the filter allows to transmit while blocking others. The CWL is a critical parameter in determining the filter's performance, as it indicates where maximum transmission occurs within the specified bandwidth

Full Width at Half Maximum(FWHM) is a critical parameter in the characterization of optical bandpass filters. It defines the width of the filter's passband at half of its maximum transmission value.

Peak Transmission (Tpk) is a key specification in the context of optical bandpass filters. It represents the maximum percentage of light that can pass through the filter at its most effective wavelength, typically located at or near the Center Wavelength (CWL).

The blocking region, also known as the blocking band or stopband, refers to the range of wavelengths or frequencies that an optical filter effectively attenuates or completely blocks. This region is crucial for ensuring that unwanted light does not interfere with the desired signal in various optical applications.

Optical Density (OD) is a measure of how much light is absorbed or blocked by a material as it passes through. It quantifies the attenuation of light and is defined mathematically as the logarithm (base 10) of the ratio of incident light intensity to transmitted light intensity.