EC ENGR 170A
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EC ENGR 170ASolutions_Manual_revised_20161119 question and answer
- Exam (elaborations) • 176 pages • 2022
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Chapter 1 
Basic Concepts of Optical Fields 
1.1 Nature of Light 
1.1.1 g 
1239.8 eV nm 1239.8 eV 5.47 eV. 
227 
E 
λ = = = 
1.1.2 g 
g 
1.2398 eV μm 1.2398 
μm 1.88 μm. 
E 0.66 
λ = = = 
Light of a wavelength longer than g λ =1.88 μm is transmitted. 
1.1.3 The wavelength of the 5-THz wave is 
8 1 
12 
3 10 m s 60 μm 
5 10 Hz 
c λ 
ν 
− × = = = × . 
Its photon energy is 
1.2398 eV μm 1.2398 eV 20.66 meV 
60 
hν 
λ = = = . 
1.1.4 The optical frequency for the 1.55 μm wavelength ...
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