1887
banner image
No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
Alternating high-voltage biasing for terahertz large-area photoconductive emitters
Rent:
Rent this article for
USD
10.1063/1.2336764
/content/aip/journal/rsi/77/8/10.1063/1.2336764
http://aip.metastore.ingenta.com/content/aip/journal/rsi/77/8/10.1063/1.2336764
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Various types of high-voltage supplies: (a) dc pulsed, short unipolar voltage pulses are separated by the laser repetition rate; (b) ac pulsed, pulses alternate in polarity; and (c) ac sine wave, average voltage of zero and frequency of a half of the laser repetition rate.

Image of FIG. 2.
FIG. 2.

Noise measured at the output of a detector amplifier with optical sampling pulse blocked. (a) Normally connected photoconductive emitter (vertically offset for clarity). (b) Photoconductive emitter disconnected from electrical circuit.

Image of FIG. 3.
FIG. 3.

Bias voltage across the electrodes of a large-area photoconductive emitter: (a) normally connected (vertically offset for clarity) and (b) electrically disconnected.

Image of FIG. 4.
FIG. 4.

Effect of blocking the conduction path with a mask. The reduction in signal is consistent with the reduction in illuminated area. (The ripple after the peak is due to absorption by atmospheric water vapor.)

Image of FIG. 5.
FIG. 5.

Terahertz emission signal measured from optically induced charge transfer in betaine dissolved in chloroform.

Image of FIG. 6.
FIG. 6.

Schematic of resonant sine wave supply (series and parallel connected). The monostable allows the voltage peak to be synchronized with the laser pulse. The parallel-connected circuit requires a dc-blocking capacitor which is chosen to be approximately ten times .

Loading

Article metrics loading...

/content/aip/journal/rsi/77/8/10.1063/1.2336764
2006-08-31
2014-04-20
Loading

Full text loading...

This is a required field
Please enter a valid email address
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Alternating high-voltage biasing for terahertz large-area photoconductive emitters
http://aip.metastore.ingenta.com/content/aip/journal/rsi/77/8/10.1063/1.2336764
10.1063/1.2336764
SEARCH_EXPAND_ITEM