What are the necessary conditions for a continuous spectrum to be produced?
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A continuous spectrum of what?
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From Wikipedia: "The visible spectrum (or sometimes optical spectrum) is the portion of the electromagnetic spectrum that is visible to the human eye. Electromagnetic radiation in this range of wavelengths is called visible light or simply light. There are no exact bounds to the visible spectrum; a typical human eye will respond to wavelengths from 400 to 700 nm, although some people may be able to perceive wavelengths from 380 to 780 nm."
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In the 76th edition it is Chapter 10 of the CRC - "Line Spectra of the Elements".  You may need to convert the numbers given to the units you desire.
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Since the UV light has particular wavelength and energy, the atoms in the florescent material absorbs that energy and goes to excited state from ground state. but it nomore stable in the excited state. so it emits an energy with is in the range of visible region with some particular wavelength and returns to ground state. the wavelength corresponding colour is visible to us....
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Only light within the visible spectrum (450 nanometres (nm) wavelength, to about 700nm wavelength). \n\nOther light (infra red and above / ultraviolet and below) is not visible.
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Are you asking for an explnation for the spectral proprties  or doy ou want the actual spectral report? either way go here....http://orgchem.colorado.edu/hndbksupport/irtutor/estersir.html
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light amplification stimulation emission radiation
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The splitting and shift of a spectral line into several components in the presence of an electric field.
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'Spectral' indicating some kind of control based on light emission?  Where will the light energy come from? (It's dark inside people).\n\nThere are already delivery systems based on dissolution, is that what you mean?
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It emits two lines \nD1 at 589.592 nm\nD2 at 588.995 nm\n\nboth in yellow region of visible spectra
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A material's emission spectrum is the amount of electromagnetic radiation of each frequency it emits when it is heated (or more generally when it is excited).\n\nWhen the electrons in the element are excited, they jump to higher energy levels. As the electrons fall back down, and leave the excited state, energy is re-emitted, the wavelength of which refers to the discrete lines of the emission spectrum. Note however that the emission extends over a range of frequencies, an effect called spectral line broadening.\n\nThe term often refers to the visible light emission spectrum, although it extends to the whole electromagnetic spectrum, from the low energy radio waves up to high energy gamma rays.\n\nThe emission spectrum can be used to determine the composition of a material, since it is different for each element of the periodic table. One example is identifying the composition of stars by analysing the received light.
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Depends on what band you want to emulate. Open spectrum can be done simply using an access point. K-Band, Kr-Band, Sat systems etc... require specialized frequency generators as well as waveguides to support them.
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Violet (about 400 nm) [for visible light (380 THz to 750 THz)]
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I know that different colors are "visible" at different wavelengths.  So, depending on an increase/decrease in energy, you would be at varying wavelengths?
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You can not generate true "white" light with a laser.  Lasers are sources of coherent light.  This implies that they are monochromatic (single wavelength or color).  In order to generate white light, you need a broad spectrum (many wavelengths), so you can not use a laser.  However, our eyes can perceive the color white with just a combination of a few colors (red, blue, green).  So a laser system that combines a red, green and blue laser will give you the impression that it is a white laser.
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You are right! Atomic structure has everything to do with what wavelengths are absorbed, and which ones are reflected. I works with light, and it works with radio waves... Thats how they make stealth aircraft. Funny thing about copper... when powdered and burned, it makes a pretty green color!
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http://submarine.dyndns.org/~tofu702/Science/Physics_Book/PhysicsBookFull.pdf\n\nInduced absorption and stimulated emission in the ground state of a three-level atom\nC Mavroyannis 1992 Quantum Opt. 4 145-150   doi:10.1088/0954-8998/4/3/001\n\n   \n     PDF (237 KB) | References | Articles citing this article \n  \n   \n\nC Mavroyannis\nSci. Inst. for Molecular Sci., Nat. Res. Council of Canada, Ottawa, Ont., Canada\nAbstract. Studies the competition between absorption and stimulated emission induced by two laser fields at low intensities interacting on a two-photon resonance with a three-level atom. The induced spectrum into the ground state consists of a peak whose height and asymmetry depend strongly on the detuning. The spectra arising from the emission of a laser photon by the excited state consists of two peaks describing stimulated emission and induced absorption, respectively, where the former dominates the latter for small values of the Rabi frequencies but for higher ones, they cancel each other out. \n\nPrint publication: Issue 3 (June 1992)\n\n\nPDF (237 KB) | References | Articles citing this article