The alpha-station is designed to perform photoluminescence (PL) and electroluminescence (EL) at wavelengths from ultraviolet (UV) to near infrared (NIR). Currently used lasers are the followings: 325 nm HeCd laser, 337 nm Nitrogen pulse laser and 488 nm Argon laser. 0.5 m ARC monochromator fitted with photomultiplier tube (PMT) or InGaAs detector is being used for optical characterization. A block diagram is shown in the following figure.

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