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First part of the course:

Name

Problem Number

Lucie

2.5, 3.4, 15.2 (a, b)

Johan

2.3, 5.5, 8.2

Klara

3.3, 4.1, 7.1, Extra*

Jianyu

2.2, 3.2, 5.3

Mustafa

3.1, 5.1, 8.1

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

Second part of the course

Name

Problem Number

Lucie

15.2 (c, d), 12.2, 11.1

Johan

12.3, 12.5, 13.2

Klara

11.6, 17.4, *

Jianyu

11.3, 12.1, 14.4

Mustafa

11.4, 17.1, 14.3

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

Administratör Ilja Sytjugov skapade sidan 8 november 2012

Administratör Ilja Sytjugov ändrade rättigheterna 11 december 2015

Kan därmed läsas av alla och ändras av administratörer.
Ilja Sytjugov redigerade 11 december 2015

First part of the course:

Name

Problem Number

Anne-Lise

 3.4, 4.1, 5.5

Bejan

 3.3, 5.3, 6.1

Cristine

 2.3, 3.2, 5.1

Tomas

 *, 2.5, 5.2

Toon

15.2 (a, b, c, d)

 

Second part of the course

Name

Problem Number

Anne-Lise

 ***, 11.1, 12.5

Bejan

 ¶ ¶ 9.3, 10.1, 13.1

Cristine

 **, 12.3, 14.4

Tomas

9.2, 11.4, 12.2

Toon

 9.5, 10.5, 11.3

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

** Gain in direct bandgap excitonic system is shown to be impossible. What makes Er+3 ion gain possible where the discrete level structure of inner levels resemble exciton levels?

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

Administratör Ilja Sytjugov ändrade rättigheterna 28 september 2017

Kan därmed läsas av alla inloggade användare och ändras av administratörer.

Administratör Ilja Sytjugov ändrade rättigheterna 21 augusti 2023

Kan därmed läsas av alla och ändras av administratörer.