Data Acquisition using the Arduino Microcontroller

Takako Hirokawa

Intro to Ultrafast Optics Early ultrafast optics Short exposures

Power =100 GW Intensity = 1017

W/cm2

E-field = 3x1012 V/m

1 mJ10 fs

3

What is HHG?

• Intense laser pulse (~1014W/cm2)• Gas jet in vacuum

4

Ionization 3 three step model

Ene

rgy

x

e-

E-Field

tim

e

Schafer, Yang, DiMauro, Kulander, Phys. Rev. Lett. 70, 1599 (1993)Kulander, Schafer, Krause, Laser Physics 3, 359 (1993) Corkum, Phys. Rev. Lett. 71, 1994 (1993)

5

Acceleration

Ene

rgy

x E-Field

tim

e

3 three step model

6

Recombination

E-Field

tim

e

Ephoton=Ekin+IP

Ene

rgy

x

3 three step model

7

Setup

Feb., 5th 2009

HH13 25

The Arduino

Demonstration!

Results How effective?

Flexible User-friendly Cost-effective

Use this parameter data (e.g. pressure) to see how the harmonics correlate.

Pressure Curve

Next Steps For the lab:

The Arduino can control other components in the lab

The Arduino can control an entire experiment.

Thank you! My mentors, Markus and Brian, as well as Joe

and the rest of the Bucksbaum group for an awesome summer.

DOE and SLAC for this amazing opportunity. Steve Rock for his dedication to the program.