If you made any changes in Pure these will be visible here soon.

Research Output

Filter
Article
2020

Electronic confinement in the continuum: Leaky bragg mirror for electrons

Sousa, V. B., Penello, G. M., Pereira, P. H., Sivco, D., Gmachl, C., Pires, M. P. & Souza, P. L., Jan 1 2020, In : Journal of Integrated Circuits and Systems. 15, 1

Research output: Contribution to journalArticle

Open Access

Thermal Management Enables Bright and Stable Perovskite Light-Emitting Diodes

Zhao, L., Roh, K., Kacmoli, S., Al Kurdi, K., Jhulki, S., Barlow, S., Marder, S. R., Gmachl, C. & Rand, B. P., Jun 1 2020, In : Advanced Materials. 32, 25, 2000752.

Research output: Contribution to journalArticle

Open Access
2019

High performance dual-mode operation asymmetric superlattice infrared photodetector using leaky electronic states

Pereira, P. H., Penello, G. M., Pires, M. P., Sivco, D., Gmachl, C. F. & Souza, P. L., May 28 2019, In : Journal of Applied Physics. 125, 20, 204501.

Research output: Contribution to journalArticle

4 Scopus citations
2018

High-power spiral cavity quantum cascade superluminescent emitters with a passive loop back facet

Zheng, M. C., Zhang, Y. M., Liu, P. Q., Wang, X., Fan, J. Y., Troccoli, M. & Gmachl, C. F., Jan 1 2018, In : Optical Engineering. 57, 1, 011001.

Research output: Contribution to journalArticle

5 Scopus citations

Implementation of an integrating sphere for the enhancement of noninvasive glucose detection using quantum cascade laser spectroscopy

Werth, A., Liakat, S., Dong, A., Woods, C. M. & Gmachl, C. F., May 1 2018, In : Applied Physics B: Lasers and Optics. 124, 5, 75.

Research output: Contribution to journalArticle

8 Scopus citations

Leaky electronic states for photovoltaic photodetectors based on asymmetric superlattices

Penello, G. M., Pereira, P. H., Pires, M. P., Sivco, D., Gmachl, C. F. & Souza, P. L., Jan 15 2018, In : Applied Physics Letters. 112, 3, 033503.

Research output: Contribution to journalArticle

7 Scopus citations

Two-band ZnCdSe/ZnCdMgSe quantum well infrared photodetector

Kaya, Y., Ravikumar, A., Chen, G., Tamargo, M. C., Shen, A. & Gmachl, C. F., Jul 1 2018, In : AIP Advances. 8, 7, 075105.

Research output: Contribution to journalArticle

1 Scopus citations

Visualizing period fluctuations in strained-layer superlattices with scanning tunneling microscopy

Kanedy, K., Lopez, F., Wood, M. R., Gmachl, C. F., Weimer, M., Klem, J. F., Hawkins, S. D., Shaner, E. A. & Kim, J. K., Jan 22 2018, In : Applied Physics Letters. 112, 4, 042105.

Research output: Contribution to journalArticle

1 Scopus citations
2016

Growth and characterization of ZnCdSe/ZnCdMgSe two-color quantum well infrared photodetectors

Chen, G., Kaya, Y., Ravikumar, A. P., Tamargo, M. C., Gmachl, C. F. & Shen, A., Jul 1 2016, In : Physica Status Solidi (C) Current Topics in Solid State Physics. 13, 7-9, p. 673-676 4 p.

Research output: Contribution to journalArticle

1 Scopus citations

II–VI quantum cascade emitters in the 6–8 μm range

Garcia, T. A., De Jesus, J., Ravikumar, A. P., Gmachl, C. F. & Tamargo, M. C., Aug 1 2016, In : Physica Status Solidi (B) Basic Research. 253, 8, p. 1494-1497 4 p.

Research output: Contribution to journalArticle

5 Scopus citations

Three-dimensional interface roughness in layered semiconductor structures and its effect on intersubband transitions

Song, A. Y., Bhat, R., Bouzi, P., Zah, C. E. & Gmachl, C. F., Oct 18 2016, In : Physical Review B. 94, 16, 165307.

Research output: Contribution to journalArticle

5 Scopus citations

Wavelength independent normal incident quantum cascade detectors

Ravikumar, A. P., Sivco, D. & Gmachl, C. F., Oct 31 2016, In : Optics Express. 24, 22, p. 25269-25276 8 p.

Research output: Contribution to journalArticle

2 Scopus citations
2015

High performance, room temperature, broadband II-VI quantum cascade detector

Ravikumar, A. P., De Jesus, J., Tamargo, M. C. & Gmachl, C. F., Oct 5 2015, In : Applied Physics Letters. 107, 14, 141105.

Research output: Contribution to journalArticle

23 Scopus citations

High power spiral cavity quantum cascade superluminescent emitter

Zheng, M. C., Aung, N. L., Basak, A., Liu, P. Q., Wang, X., Fan, J. Y., Troccoli, M. & Gmachl, C. F., Feb 9 2015, In : Optics Express. 23, 3, p. 2713-2719 7 p.

Research output: Contribution to journalArticle

8 Scopus citations

Quantum cascade emission in the III-nitride material system designed with effective interface grading

Song, A. Y., Bhat, R., Allerman, A. A., Wang, J., Huang, T. Y., Zah, C. E. & Gmachl, C. F., Sep 28 2015, In : Applied Physics Letters. 107, 13, 132104.

Research output: Contribution to journalArticle

11 Scopus citations

Threshold current reduction and directional emission of deformed microdisk lasers via spatially selective electrical pumping

Aung, N. L., Ge, L., Malik, O., Tureci, H. E. & Gmachl, C. F., Oct 12 2015, In : Applied Physics Letters. 107, 15, 151106.

Research output: Contribution to journalArticle

6 Scopus citations
2014

High detectivity short-wavelength II-VI quantum cascade detector

Ravikumar, A. P., Garcia, T. A., Jesus, J. D., Tamargo, M. C. & Gmachl, C. F., Aug 11 2014, In : Applied Physics Letters. 105, 6, 061113.

Research output: Contribution to journalArticle

19 Scopus citations

High peak power (≥10 mW) quantum cascade superluminescent emitter

Aung, N. L., Yu, Z., Yu, Y., Liu, P. Q., Wang, X., Fan, J. Y., Troccoli, M. & Gmachl, C. F., Dec 1 2014, In : Applied Physics Letters. 105, 22, 221111.

Research output: Contribution to journalArticle

11 Scopus citations

III-nitride quantum cascade detector grown by metal organic chemical vapor deposition

Song, Y., Bhat, R., Huang, T. Y., Badami, P., Zah, C. E. & Gmachl, C. F., Nov 3 2014, In : Applied Physics Letters. 105, 18, 182104.

Research output: Contribution to journalArticle

4 Scopus citations

Importance of growth direction in mid-infrared quantum cascade lasers

Bouzi, P. M., Chiu, Y., Deutsch, C., Dikmelik, Y., Song, Y., Tokranov, V., Oktyabrsky, S. & Gmachl, C. F., Jul 21 2014, In : Journal of Applied Physics. 116, 3, 034504.

Research output: Contribution to journalArticle

4 Scopus citations

Low-strain, quantum-cascade-laser active regions grown on metamorphic buffer layers for emission in the 3.0-4.0 μm wavelength region

Mawst, L. J., Kirch, J. D., Kim, T. W., Garrod, T., Boyle, C., Botez, D., Zutter, B., Schulte, K., Kuech, T. F., Bouzi, P. M., Gmachl, C. F. & Earles, T., Jan 1 2014, In : IET Optoelectronics. 8, 2, p. 25-32 8 p.

Research output: Contribution to journalArticle

6 Scopus citations

Mid-infrared light emission from a Fe2+:ZnSe polycrystal using quantum cascade laser pumping

Song, Y., Sonntag, J., Mirov, S. B., Gmachl, C. F. & Khurgin, J. B., Oct 6 2014, In : Applied Physics Letters. 105, 14, 141108.

Research output: Contribution to journalArticle

6 Scopus citations

Noninvasive in vivo glucose sensing on human subjects using mid-infrared light

Liakat, S., Bors, K. A., Xu, L., Woods, C. M., Doyle, J. & Gmachl, C. F., Jun 1 2014, In : Biomedical Optics Express. 5, 7, p. 2397-2404 8 p.

Research output: Contribution to journalArticle

73 Scopus citations

Non-uniform lateral current distribution in quantum cascade lasers

Huang, X., Dikmelik, Y. & Gmachl, C. F., Mar 10 2014, In : Optics Express. 22, 5, p. 6154-6164 11 p.

Research output: Contribution to journalArticle

2013

Characterization of the three-well active region of a quantum cascade laser using contactless electroreflectance

De Jesus, J., Garcia, T. A., Dhomkar, S., Ravikumar, A., Gmachl, C., Chen, G., Shen, A., Ferizovic, D., Muñoz, M. & Tamargo, M. C., May 2013, In : Journal of Vacuum Science and Technology B:Nanotechnology and Microelectronics. 31, 3, 03C134.

Research output: Contribution to journalArticle

4 Scopus citations

Improved electrical properties and crystalline quality of II-VI heterostructures for quantum cascade lasers

Axtmann Garcia, T., Hong, S., Tamargo, M., De Jesus, J., Deligiannakis, V., Ravikumar, A., Gmachl, C. F. & Shen, A., May 2013, In : Journal of Vacuum Science and Technology B:Nanotechnology and Microelectronics. 31, 3, 03C133.

Research output: Contribution to journalArticle

4 Scopus citations

In vitro measurements of physiological glucose concentrations in biological fluids using mid-infrared light

Liakat, S., Bors, K. A., Huang, T. Y., Michel, A. P. M., Zanghi, E. & Gmachl, C. F., Jan 1 2013, In : Biomedical Optics Express. 4, 7, p. 1083-1090 8 p.

Research output: Contribution to journalArticle

37 Scopus citations

In vivo measurement of mid-infrared light scattering from human skin

Michel, A. P. M., Liakat, S., Bors, K. & Gmachl, C. F., Apr 1 2013, In : Biomedical Optics Express. 4, 4, p. 520-530 11 p.

Research output: Contribution to journalArticle

30 Scopus citations

MBE growth of ZnCdSe/ZnCdMgSe quantum-well infrared photodetectors

Shen, A., Pawan Ravikumar, A., Chen, G., Zhao, K., Alfaro-Martinez, A., Garcia, T., De Jesus, J., Tamargo, M. C. & Gmachl, C., May 2013, In : Journal of Vacuum Science and Technology B:Nanotechnology and Microelectronics. 31, 3, 03C113.

Research output: Contribution to journalArticle

9 Scopus citations

Quantum cascade laser-based sensing for carbon sequestration leakage monitoring

Escarra, M. D., Le, L. T., Urban, N. M., Oppenheimer, M. & Gmachl, C. F., May 13 2013, In : IEEE Sensors Journal. 13, 6, p. 2348-2356 9 p., 6482580.

Research output: Contribution to journalArticle

1 Scopus citations

Room temperature and high responsivity short wavelength II-VI quantum well infrared photodetector

Ravikumar, A. P., Chen, G., Zhao, K., Tian, Y., Prucnal, P. R., Tamargo, M. C., Gmachl, C. F. & Shen, A., Apr 22 2013, In : Applied Physics Letters. 102, 16, 161107.

Research output: Contribution to journalArticle

24 Scopus citations

Same-wavelength cascaded-transition quantum cascade laser

Huang, X., Zhang, J. L., Tokranov, V., Oktyabrsky, S. & Gmachl, C. F., Jul 29 2013, In : Applied Physics Letters. 103, 5, 051113.

Research output: Contribution to journalArticle

1 Scopus citations

Suppression of pointing instability in quantum cascade lasers by transverse mode control

Bouzi, P. M., Liu, P. Q., Aung, N., Wang, X., Fan, J. Y., Troccoli, M. & Gmachl, C. F., Mar 25 2013, In : Applied Physics Letters. 102, 12, 122105.

Research output: Contribution to journalArticle

3 Scopus citations

Wavelength selection and spectral narrowing of distributed Bragg reflector quantum cascade lasers up to peak optical power

Sadeghi, A., Liu, P. Q., Wang, X., Fan, J., Troccoli, M. & Gmachl, C. F., Dec 16 2013, In : Optics Express. 21, 25, p. 31012-31018 7 p.

Research output: Contribution to journalArticle

2 Scopus citations

Wide single-mode tuning in quantum cascade lasers with asymmetric Mach-Zehnder interferometer type cavities with separately biased arms

Zheng, M. C., Liu, P. Q., Wang, X., Fan, J. Y., Troccoli, M. & Gmachl, C. F., Nov 18 2013, In : Applied Physics Letters. 103, 21, 211112.

Research output: Contribution to journalArticle

4 Scopus citations
2012

Bridging the collaborative gap: Realizing the clinical potential of breath analysis for disease diagnosis and monitoring-tutorial

Braun, P. X., Gmachl, C. F. & Dweik, R. A., Oct 26 2012, In : IEEE Sensors Journal. 12, 11, p. 3258-3270 13 p., 6249719.

Research output: Contribution to journalArticle

24 Scopus citations

Effect of surface defects on InGaAs/InAlAs Quantum Cascade mesa current-voltage characteristics

Aung, N. L., Huang, X., Charles, W. O., Yao, N. & Gmachl, C. F., Aug 15 2012, In : Journal of Crystal Growth. 353, 1, p. 35-38 4 p.

Research output: Contribution to journalArticle

1 Scopus citations

Femtosecond carrier dynamics and nonlinear effects in quantum cascade lasers

Liu, S., Lalanne, E., Liu, P. Q., Wang, X., Gmachl, C. F. & Johnson, A. M., Jan 1 2012, In : IEEE Journal on Selected Topics in Quantum Electronics. 18, 1, p. 92-104 13 p., 6145139.

Research output: Contribution to journalArticle

15 Scopus citations

Grating duty-cycle induced enhancement of substrate emission from ring cavity quantum cascade lasers

Schwarzer, C., Mujagić, E., Ahn, S. I., Andrews, A. M., Schrenk, W., Charles, W., Gmachl, C. F. & Strasser, G., May 7 2012, In : Applied Physics Letters. 100, 19, 191103.

Research output: Contribution to journalArticle

12 Scopus citations

Implementation of a semi-transparent mid-infrared quantum well infrared photodetector simultaneously as a beamsplitter and a reference detector

Bentil, E. N., Penello, G. M., Charles, W. O., Liu, P. Q. & Gmachl, C. F., Jan 2 2012, In : Applied Physics Letters. 100, 1, 011104.

Research output: Contribution to journalArticle

3 Scopus citations

Importance of interface roughness induced intersubband scattering in mid-infrared quantum cascade lasers

Chiu, Y., Dikmelik, Y., Liu, P. Q., Aung, N. L., Khurgin, J. B. & Gmachl, C. F., Oct 22 2012, In : Applied Physics Letters. 101, 17, 171117.

Research output: Contribution to journalArticle

35 Scopus citations

Mid-infrared (λ = 8.4-9.9 μm) light scattering from porcine tissue

Liakat, S., Michel, A. P. M., Bors, K. A. & Gmachl, C. F., Aug 27 2012, In : Applied Physics Letters. 101, 9, 093705.

Research output: Contribution to journalArticle

14 Scopus citations

Optimization of molecular beam epitaxy (MBE) growth for the development of mid-infrared (IR) II-VI quantum cascade lasers

Moug, R. T., Sultana, H., Yao, Y., Alfaro-Martinez, A., Peng, L., Garcia, T., Shen, A., Gmachl, C. F. & Tamargo, M. C., May 1 2012, In : Journal of Electronic Materials. 41, 5, p. 944-947 4 p.

Research output: Contribution to journalArticle

2 Scopus citations

QCL-based sensors target health and environmental applications

Hu, J. & Gmachl, C. F., Feb 1 2012, Laser Focus World, 48, 2, p. 39-43 5 p.

Research output: Contribution to specialist publicationArticle

Ridge-width dependence of the threshold of long wavelength (λ ≈14 μm) quantum cascade lasers with sloped and vertical sidewalls

Huang, X., Chiu, Y., Charles, W. O. & Gmachl, C. F., Jan 30 2012, In : Optics Express. 20, 3, p. 2539-2547 9 p.

Research output: Contribution to journalArticle

17 Scopus citations

Single-mode quantum cascade lasers employing asymmetric Mach-Zehnder interferometer type cavities

Liu, P. Q., Wang, X. & Gmachl, C. F., Oct 15 2012, In : Applied Physics Letters. 101, 16, 161115.

Research output: Contribution to journalArticle

16 Scopus citations

ZnCdSe/ZnCdMgSe quantum well infrared photodetector

Ravikumar, A. P., Alfaro-Martinez, A., Chen, G., Zhao, K., Tamargo, M. C., Gmachl, C. F. & Shen, A., Sep 24 2012, In : Optics Express. 20, 20, p. 22391-22397 7 p.

Research output: Contribution to journalArticle

20 Scopus citations
2011

Cavity length scaling of quantum cascade lasers for single-mode emission and low heat dissipation, room temperature, continuous wave operation

Cendejas, R. A., Liu, Z., Sánchez-Vaynshteyn, W., Caneau, C. G., Zah, C. E. & Gmachl, C. F., Feb 3 2011, In : IEEE Photonics Journal. 3, 1, 5680570.

Research output: Contribution to journalArticle

10 Scopus citations

Enhanced bandwidth and reduced dispersion through stacking multiple optical metamaterials

Escarra, M. D., Thongrattanasiri, S., Charles, W. O., Hoffman, A. J., Podolskiy, V. A. & Gmachl, C. F., Aug 1 2011, In : Optics Express. 19, 16, p. 14990-14998 9 p.

Research output: Contribution to journalArticle

6 Scopus citations

Quantum cascade lasers enhance Mid-IR spectroscopy

Hu, J. & Gmachl, C. F., Dec 1 2011, Photonics Spectra, 45, 12.

Research output: Contribution to specialist publicationArticle