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.
Broad gain in a bound-to-continuum quantum cascade laser with heterogeneous active region
Rent this article for
View: Figures


Image of FIG. 1.
FIG. 1.

(Color online) Conduction band diagrams of the two designs that have been used, labeled α and β. The upper laser level (2), lower laser level (1), and injector state (i) are all highlighted. Each design is calculated with an applied electric field of 1.8 kV cm−1.

Image of FIG. 2.
FIG. 2.

(Color online) Experimental results from the design α and β grown and processed as separate lasers. Each device was 3 mm long and 250 μm wide.

Image of FIG. 3.
FIG. 3.

(Color online) (a) Pulsed LIVs at various temperatures for the heterogeneous single plasmon device, the duty cycle was 1% and the emission was measured with a Golay cell. (b) Pulsed spectra from the same device.

Image of FIG. 4.
FIG. 4.

(Color online) Spectra gain measured from a single plasmon waveguide using THz TDS. The device was powered in pulsed mode with a 25% duty cycle and a heat sink temperature of 10 K. (a) Gain spectra at 2.6 THz and 2.9 THz as a function of current and (b) the spectral gain at selected currents.

Image of FIG. 5.
FIG. 5.

(Color online) Laser spectra from a metal-metal heterogeneous device operating in CW. The ridge is 1.83 mm long and 250 μm wide.


Article metrics loading...


Full text loading...

This is a required field
Please enter a valid email address
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Broad gain in a bound-to-continuum quantum cascade laser with heterogeneous active region