Widely tuned room temperature terahertz quantum cascade laser sources based on difference-frequency generation

Q. Y. Lu; N. Bandyopadhyay; S. Slivken; Y. Bai; M. Razeghi

doi:10.1063/1.4773189

Widely tuned room temperature terahertz quantum cascade laser sources based on difference-frequency generation

Q. Y. Lu^*, N. Bandyopadhyay, S. Slivken, Y. Bai, M. Razeghi

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

61 Scopus citations

Abstract

We demonstrate room temperature THz quantum cascade laser sources with a broad spectral coverage based on intracavity difference-frequency generation. Two mid-infrared active cores based on the single-phonon resonance scheme are designed with a THz nonlinearity specially optimized at the high operating fields that correspond to the highest mid-infrared output powers. A Čerenkov phase-matching scheme along with integrated dual-period distributed feedback gratings are used for efficient THz extraction and spectral purification. Single mode emissions from 1.0 to 4.6 THz with a side-mode suppression ratio and output power up to 40 dB and 32 μW are obtained, respectively.

Original language	English (US)
Article number	251121
Journal	Applied Physics Letters
Volume	101
Issue number	25
DOIs	https://doi.org/10.1063/1.4773189
State	Published - Dec 17 2012

Funding

This work is partially supported by the National Science Foundation under Grant ECCS-1231289. The authors would also like to acknowledge the encouragement and support of Dr. K. K. Law from the Naval Air Warfare Center, Dr. T. Manzur from the Naval Undersea Warfare Center, and Dr. N. Dhar from the Defense Advanced Research Projects Agency.

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

Access to Document

10.1063/1.4773189

Cite this

@article{6371b408357a48cf817b32875902b438,

title = "Widely tuned room temperature terahertz quantum cascade laser sources based on difference-frequency generation",

abstract = "We demonstrate room temperature THz quantum cascade laser sources with a broad spectral coverage based on intracavity difference-frequency generation. Two mid-infrared active cores based on the single-phonon resonance scheme are designed with a THz nonlinearity specially optimized at the high operating fields that correspond to the highest mid-infrared output powers. A {\v C}erenkov phase-matching scheme along with integrated dual-period distributed feedback gratings are used for efficient THz extraction and spectral purification. Single mode emissions from 1.0 to 4.6 THz with a side-mode suppression ratio and output power up to 40 dB and 32 μW are obtained, respectively.",

author = "Lu, {Q. Y.} and N. Bandyopadhyay and S. Slivken and Y. Bai and M. Razeghi",

note = "Funding Information: This work is partially supported by the National Science Foundation under Grant ECCS-1231289. The authors would also like to acknowledge the encouragement and support of Dr. K. K. Law from the Naval Air Warfare Center, Dr. T. Manzur from the Naval Undersea Warfare Center, and Dr. N. Dhar from the Defense Advanced Research Projects Agency.",

year = "2012",

month = dec,

day = "17",

doi = "10.1063/1.4773189",

language = "English (US)",

volume = "101",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics Publising LLC",

number = "25",

}

TY - JOUR

T1 - Widely tuned room temperature terahertz quantum cascade laser sources based on difference-frequency generation

AU - Lu, Q. Y.

AU - Bandyopadhyay, N.

AU - Slivken, S.

AU - Bai, Y.

AU - Razeghi, M.

N1 - Funding Information: This work is partially supported by the National Science Foundation under Grant ECCS-1231289. The authors would also like to acknowledge the encouragement and support of Dr. K. K. Law from the Naval Air Warfare Center, Dr. T. Manzur from the Naval Undersea Warfare Center, and Dr. N. Dhar from the Defense Advanced Research Projects Agency.

PY - 2012/12/17

Y1 - 2012/12/17

N2 - We demonstrate room temperature THz quantum cascade laser sources with a broad spectral coverage based on intracavity difference-frequency generation. Two mid-infrared active cores based on the single-phonon resonance scheme are designed with a THz nonlinearity specially optimized at the high operating fields that correspond to the highest mid-infrared output powers. A Čerenkov phase-matching scheme along with integrated dual-period distributed feedback gratings are used for efficient THz extraction and spectral purification. Single mode emissions from 1.0 to 4.6 THz with a side-mode suppression ratio and output power up to 40 dB and 32 μW are obtained, respectively.

AB - We demonstrate room temperature THz quantum cascade laser sources with a broad spectral coverage based on intracavity difference-frequency generation. Two mid-infrared active cores based on the single-phonon resonance scheme are designed with a THz nonlinearity specially optimized at the high operating fields that correspond to the highest mid-infrared output powers. A Čerenkov phase-matching scheme along with integrated dual-period distributed feedback gratings are used for efficient THz extraction and spectral purification. Single mode emissions from 1.0 to 4.6 THz with a side-mode suppression ratio and output power up to 40 dB and 32 μW are obtained, respectively.

UR - http://www.scopus.com/inward/record.url?scp=84871813755&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84871813755&partnerID=8YFLogxK

U2 - 10.1063/1.4773189

DO - 10.1063/1.4773189

M3 - Article

AN - SCOPUS:84871813755

SN - 0003-6951

VL - 101

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 25

M1 - 251121

ER -

Widely tuned room temperature terahertz quantum cascade laser sources based on difference-frequency generation

Abstract

Funding

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this