Question

what are tge different sources of light. How are they classified

Answer 1

1.Electrodeless lamp.
2.Excimer lamp.
3.Fluorescent lamp. Compact fluorescent lamp. Tanning lamp. Black lights. ...
4.High-intensity discharge lamp. Carbon arc lamp. Ceramic discharge metal-halide lamp. ...
5.Hollow-cathode lamp.
6.Induction lighting. Sulfur lamp. Sulfur lamps.
7.Neon and argon lamps. Dekatron (Defunct) Dekatron. ...
8.Plasma lamp.

classification are:
Emission from a molecular light source depends on its optical and chemical environment. This dependence is different for various sources. We present a general classification in terms of constant-amplitude and constant-power sources. Using this classification, we have described the response to both changes in the local density of states and stimulated emission. The unforeseen consequences of this classification are illustrated for photonic studies by random laser experiments and are in good agreement with our correspondingly developed theory. Our results require a revision of studies on sources in complex media.