Broadband semiconductor terahertz laser based on heterogeneous cascades

Dana Turcinková; Giacomo Scalari; Maria I. Amanti; Fabrizio Castellano; Mattias Beck; James Lloyd-Hughes; Jérôme Faist

doi:10.1117/12.874600

16 February 2011 Broadband semiconductor terahertz laser based on heterogeneous cascades

Dana Turcinková, Giacomo Scalari, Maria I. Amanti, Fabrizio Castellano, Mattias Beck, James Lloyd-Hughes, Jérôme Faist

Proceedings Volume 7953, Novel In-Plane Semiconductor Lasers X; 79530P (2011) https://doi.org/10.1117/12.874600
Event: SPIE OPTO, 2011, San Francisco, California, United States

Abstract

We present a development of a broad gain heterogeneous quantum cascade laser for terahertz frequencies. By placing appropriate different active-regions based on a four-quantum-well design into a double-metal waveguide we obtained laser emitting gapless over a bandwidth of 1 THz, between 3.2 to 2.2 THz. This means that this single-device source covers an emission range of nearly 40 % around the center frequency. In pulsed mode operation, our devices show threshold current density as low as 285 A/cm² and they operate up to 125 K. We also report on continuous wave measurements.

Citation Download Citation

Dana Turcinková, Giacomo Scalari, Maria I. Amanti, Fabrizio Castellano, Mattias Beck, James Lloyd-Hughes, and Jérôme Faist "Broadband semiconductor terahertz laser based on heterogeneous cascades", Proc. SPIE 7953, Novel In-Plane Semiconductor Lasers X, 79530P (16 February 2011); https://doi.org/10.1117/12.874600

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available