[Progress in charge-coupled device and its applications]

Charge-coupled device (CCD) is a photosensitive element based on the metal-oxidesemiconductor technology. Currently, it has a number of benefits; broad spectral range response, low detection limit, wide dynamic range, minimal dark current and readout noise as well as abilities of signal integration, simultaneous multichannel detection and real-time detection. In this paper, the operational principle, features and performance characterization of CCD are introduced and its applicaton in spectral detection and spectral imaging are veiwed. The development of CCD technique has brought a revolutionary progress in the spectroscopic areas. Its future developments are also outlooked.