导弹
发表于 2025-3-21 17:12:21
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BIDE
发表于 2025-3-21 21:10:36
Textbook 2004Latest editioneveral improvements have been made and some new items have been included. In Sect. 13. 2 the new Quantum Cascade Laser which covers the far in frared spectral range has been added. In Sect. 14. 4 the theory of the quantum Hall effect is now based on ballistic transport which in a more general respe
坚毅
发表于 2025-3-22 02:12:37
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慢慢冲刷
发表于 2025-3-22 08:17:54
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Dorsal
发表于 2025-3-22 11:54:56
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说笑
发表于 2025-3-22 14:50:34
Optical Absorption and Reflection,For numerical purposes it may be worth noting that a quantum energy . of 1 eV is equivalent to a wave number . of 8060 cm. and to a wavelength λ of 1.24 .m. A frequency of 1 THz corresponds to a wavelength of 299.8.m .
山崩
发表于 2025-3-22 20:49:38
Light Generation by Semiconductors,12), are called .. While the former convert electrical energy into optical radiation, the latter do the inverse process. In this chapter we will consider light-emitting diodes (LED), a light-emitting transistor (LET), and diode lasers .
homocysteine
发表于 2025-3-23 01:03:51
1439-2674 benefit to students and teachers alikeThis book, now in its ninth edition, still has the character of a textbook with the emphasis on "Physics". The volume has increased somewhat because several improvements have been made and some new items have been included. In Sect. 13. 2 the new Quantum Cascade
倒转
发表于 2025-3-23 02:54:33
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lambaste
发表于 2025-3-23 09:05:30
Energy Band Structure,uare of the momentum. The factor of proportionality is 1/(2..), where .. is the free electron mass. In the ., the same relationship between energy and momentum is assumed except that m0 is replaced by an .. This may be larger or smaller than m.. Why this is so will be seen later in this chapter. Qui