Source: OPTOMAN Understanding Dispersive Mirrors in Laser Optics What are Dispersive Mirrors? Dispersive mirrors are specialized mirrors used in laser optics that introduce chromatic dispersion. They are essential for applications like dispersion compensation in laser resonators, pulse compression, and other femtosecond laser optics and signal processing tasks. Types of Dispersive Mirrors Dispersive mirrors are typically […]
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Source: YouTube Bipolar Phototransistors Phototransistors are semiconductor-based photodetectors that can be classified into bipolar phototransistors and field-effect phototransistors (photoFETs). Bipolar phototransistors operate on the principle of amplifying collector current when light hits the base-collector junction. This amplification results in higher responsivity compared to photodiodes. However, the detection bandwidth of bipolar phototransistors is limited by the
Source: Britannica Understanding Fluorescent Lamps Overview Fluorescent lamps are popular lighting devices that emit fluorescent light by exciting phosphor with ultraviolet light from an electric discharge in mercury vapor. The emitted light is typically white and is commonly used for illumination purposes. Composition and Operation Fluorescent lamps consist of mercury vapor mixed with argon or
