誰知道惰性氣體的各個波長?

Question

實驗做出來發現某個惰性氣體的波長為656埃!

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Answer 1

HELIUM-NEON LASERS
(15) Commercially available HeNe lasers operating at the 632.8-nm wavelength can be obtained with CW outputs ranging from 0.5 mW to 50 mW, with higherpower systems often being used in holographic work. Some HeNe lasers have interchangeable sets of mirrors for operation at 1.15 mm and 3.39 mm. HeNe laser systems have the following characteristics:

HeNe beams have a low divergence.
HeNe beams have a high temporal/spatial coherence.
HeNe lasers can utilize a built-in modulator.
The HeNe plasma tube has a long lifetime.
Construction of a HeNe laser is rugged and can withstand hostile environmental conditions (temperature, humidity, mechanical shock).
HeNe lasers are relatively inexpensive.

ARGON AND KRYPTON LASERS
(16) Ion-gas lasers are high-current (20-30 A), low-voltage (200-300 V) devices that employ an ionized gas (arc plasma) as the active medium. Argon, with a number of 1asing lines in the blue-green portion of the EM spectrum, and krypton, with lines spanning virtually the entire visible spectrum, are the two most important ion-gas lasers. Only a few of the many losing lines in singly-ionized argon and krypton are shown in Figure 1. The two strong lines in Ar+, at 488.0 nm and 514.5 nm, should be noted. Laser systems with active media composed of argon, krypton, or a mixture of these two gases are obtainable with a CW output power of several watts, low beam divergence, and good coherence properties. Pulsed ion lasers also are available, with pulse energies in the range of 100 to 200 mJ at repetition rates of 1 to 120 pulses/second (pps).

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Answer 2

誰知道惰性氣體的各個波長?
這網頁有幾個元素的資料，請參考 :
http://hyperphysics.phy-astr.gsu.edu/hbase/quantum/atspect.html#c1
http://hyperphysics.phy-astr.gsu.edu/hbase/hyde.html#c4
http://hyperphysics.phy-astr.gsu.edu/hbase/quantum/atspect3.html#c1