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Where sunlight shines on the atmosphere of Mars, carbon dioxide

Where sunlight shines on the atmosphere of Mars, carbon dioxide molecules at an altitude of about 75 km undergo natural laser action. The energy levels involved in the action are shown in Fig. 40-26; population inversion occurs between energy levels

Where sunlight shines on the atmosphere of Mars, carbon dioxide molecules at an altitude of about 75 km undergo natural laser action. The energy levels involved in the action are shown in Fig. 40-26; population inversion occurs between energy levels E2 and E1.
(a) What wavelength of sunlight excites the molecules in the lasing action?
(b) At what wavelength does lasing occur?
(c) In what region of the electromagnetic spectrum do the excitation and lasing wavelengths lie?

Where sunlight shines on the atmosphere of Mars, carbon dioxide molecules at an altitude of about 75 km undergo natural laser action. The energy levels involved in the action are shown in Fig. 40-26; population inversion occurs between energy levels

E2 0.289 eV E 0.165 eV 0

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a In the lasing action the molecules are excited from energy level E 0 to energy lev…View the full answer

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