Title :
THz optical coherence tomography based on quantum cascade lasers
Author :
Lee, Alan Wei Min ; Kao, Tsung-Yu ; Burgoff, David ; Hu, Qing ; Reno, John L.
Author_Institution :
LongWave Photonics LLC, Boston, MA, USA
Abstract :
The interfaces of a dielectric sample are resolved at terahertz frequencies by swept-source optical coherence tomography. The source is a 12-element array of third order distributed feedback quantum cascade lasers operating over a frequency range of 2.08 to 2.4 THz, at peak power levels of 100 μW, at 48 K maintained by a compact cryocooler.
Keywords :
dielectric materials; distributed feedback lasers; optical tomography; quantum cascade lasers; terahertz waves; THz optical coherence tomography; compact cryocooler; dielectric sample; frequency 2.08 THz to 2.4 THz; quantum cascade lasers; swept-source optical coherence tomography; temperature 48 K; third order distributed feedback lasers; Arrays; Coherence; Mirrors; Optical feedback; Optical interferometry; Quantum cascade lasers; Tomography;
Conference_Titel :
Infrared, Millimeter and Terahertz Waves (IRMMW-THz), 2011 36th International Conference on
Conference_Location :
Houston, TX
Print_ISBN :
978-1-4577-0510-6
Electronic_ISBN :
2162-2027
DOI :
10.1109/irmmw-THz.2011.6105159
