Mentoring and Great Times with Herb Kroemer

7
roemer Symposium, May 20, 2013 STANFORD JSH 1 Mentoring and Great Times with Herb Kroemer Herbert Kroemer Symposium, May 20, 2013 James S. Harris

description

Mentoring and Great Times with Herb Kroemer. James S. Harris. Herbert Kroemer Symposium, May 20, 2013. Kroemer ’ s Lemma of Proven Ignorance. If , in discussing a semiconductor problem, you cannot draw an Energy Band Diagram, then you don't know what you are talking about. - PowerPoint PPT Presentation

Transcript of Mentoring and Great Times with Herb Kroemer

Page 1: Mentoring and Great Times with Herb Kroemer

Kroemer Symposium, May 20, 2013

STANFORD

JSH 1

Mentoring and Great Times with Herb Kroemer

Herbert Kroemer Symposium, May 20, 2013

James S. Harris

Page 2: Mentoring and Great Times with Herb Kroemer

Kroemer Symposium, May 20, 2013

STANFORD

JSH 2

If,in discussing a semiconductor problem, you cannot draw anEnergy Band Diagram,

then you don't knowwhat you are talking about.

Corollary: If you can, but don't,then your audience won't know

what you are talking about

Kroemer’s Lemma ofProven Ignorance

H. Kroemer-Prof. UCSB2000 Nobel lecture

Page 3: Mentoring and Great Times with Herb Kroemer

Kroemer Symposium, May 20, 2013

STANFORD

JSH 3

Heterojunction Confusion

Page 4: Mentoring and Great Times with Herb Kroemer

Kroemer Symposium, May 20, 2013

STANFORD

JSH 4

The Saga of Heterojunction Barriers

Page 5: Mentoring and Great Times with Herb Kroemer

Kroemer Symposium, May 20, 2013

STANFORD

JSH 5

The Heterojunction Barrier Mystery Solved

Page 6: Mentoring and Great Times with Herb Kroemer

Kroemer Symposium, May 20, 2013

STANFORD

JSH 6

Heterojunction LaserProc. IEEE, Dec. 1963

Page 7: Mentoring and Great Times with Herb Kroemer

Kroemer Symposium, May 20, 2013

STANFORD

JSH 7

Microdisk Ge QW Photoluminescence

• Amplified spontaneous emission pumped by 900nm pulsed laser

• Two small peaks on each fringe

TE / TM or higher order mode

• PL intensity is super linear, estimated gain of 1500 cm-1

-0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1

-0.8

-0.6

-0.4

-0.2

0

0.2

0.4

0.6

0.8

1350 1400 1450 1500 15500

2000

4000

6000

8000

Wavelength (nm)

PL

inte

nsity

(a.u

.)

10 mW20 mW30 mW40 mW60 mW