Home Assignments

First part of the course:

Name

Problem Number

Katharina

3.4 (a, b), 5.2, 7.2

Lige

15.2 (a, b, c, d)

Qingyun

2.5 (a, b), 3.3, 5.3

Thomas

2.3, 6.1, 8.4

Yanyan

4.1, 5.1, 8.1

Second part of the course

Name

Problem Number

Katharina

Lige¶ ¶ Qingyun¶ ¶ Thomas¶ ¶ Yanyan¶ ¶

11.1, 12.3, 17.2¶

Lige¶

10.5, 13.1, 17.1¶

Qingyun¶

10.2, 12.2, 14.2, *¶

Thomas¶

11.4, 12.5, 14.3, **¶

Yanyan¶

¶

10.1, 12.1, 14.4¶

* Extra task: What is the difference between amplified spontaneous emission and stimulated emission? How can these two be distinguished in an experiment?¶

** Extra task: Considering that ionization energy of donors and acceptors in Si is about 50 meV, estimate the fraction of ionized impurities at room temperature