Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Mei Chai Zheng"'
Autor:
Mei Chai Zheng, D.R. Calawa, Federico Capasso, Daniel McNulty, A. Akey, Leo J. Missaggia, Michael K. Connors, Benedikt Schwarz, Dominic F. Siriani, Tobias S. Mansuripur, Christine A. Wang, Joseph P. Donnelly
Publikováno v:
Journal of Crystal Growth. 464:215-220
The measured emission wavelengths of AlInAs/GaInAs/InP quantum cascade lasers (QCLs) grown by metal organic vapor phase epitaxy (MOVPE) have been reported to be ~ 0.5–1 µm longer than the designed QCL wavelength. This work clarifies the origin of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a38f1e5e6fdf8bead26a5d248d32b28
https://doi.org/10.1016/j.jcrysgro.2016.11.029
https://doi.org/10.1016/j.jcrysgro.2016.11.029
Autor:
Tobias S. Mansuripur, D.R. Calawa, Leo J. Missaggia, Michael K. Connors, Daniel McNulty, Dominic F. Siriani, Christine A. Wang, Mei Chai Zheng, Federico Capasso, Joseph P. Donnelly
Publikováno v:
Journal of Crystal Growth. 452:263-267
We report on a study of the effects of intentional thickness and doping variations on QCL performance. The measured QCL data had very similar trends to those predicted by an in-house QCL model. It was found that absolute changes to the QCL period had
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c3746ed2b7a6b24aac36c2f8b5dd0eb1
https://doi.org/10.1016/j.jcrysgro.2015.11.006
https://doi.org/10.1016/j.jcrysgro.2015.11.006
Publikováno v:
FIE
The current Research-to-Practice, Work-in-Progress paper presents the development, launch, and preliminary evaluation of a series of four new introductory engineering courses at Princeton University School of Engineering and Applied Science (SEAS). T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::549892b70d9fed72cb3582c119596ddc
https://doi.org/10.1109/fie.2018.8658650
https://doi.org/10.1109/fie.2018.8658650
Autor:
Abanti Basak, Sara Kacmoli, Deborah L. Sivco, Mei Chai Zheng, Abigail R. Pitarresi, Claire F. Gmachl, Yezhezi Zhang
Publikováno v:
Conference on Lasers and Electro-Optics.
We report on 8 μm quantum cascade superluminescent emitters. Doping in the active region contributed to higher SL power of 7.5 mW; we obtained a coherence length of ∼346 μm at maximum SL power.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5516ef533721b5d86c97e138afeec7b8
https://doi.org/10.1364/cleo_at.2018.af1q.3
https://doi.org/10.1364/cleo_at.2018.af1q.3
Publikováno v:
Conference on Lasers and Electro-Optics.
We have successfully designed and tested the first working high-resolution, mid-IR OCT system that can simultaneously perform structural and chemical analysis of samples using novel low-coherent, high power QC emitters.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ca3efaf444851ccd3a8eb7d6c2c61aa3
https://doi.org/10.1364/cleo_at.2016.atu1j.7
https://doi.org/10.1364/cleo_at.2016.atu1j.7
Publikováno v:
Acta Physica Polonica A. 116:756-764
We analyze the echo dynamics in quasi-one-dimensional random media to investigate how the transition from localization to delocalization is encoded in its temporal decay properties. Our analysis extends from the standard perturbative regime correspon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f56caa9a4a613ce622734336e82111d
https://doi.org/10.12693/aphyspola.116.756
https://doi.org/10.12693/aphyspola.116.756
Autor:
Jen-Yu Fan, Yezhezi M. Zhang, Xiaojun Wang, Mei Chai Zheng, Mariano Troccoli, Peter Q. Liu, Claire F. Gmachl
Publikováno v:
Optical Engineering. 57:1
We report on the experimental demonstration of a high-power (>100 mW) quantum cascade superluminescent (SL) emitter employing a spiral cavity with a passive loop back facet. By replacing the rounded, wet-etched, antireflection coated back facet of a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7df1ac9c7cb7a68eb4c0efee0ab15caf
https://doi.org/10.1117/1.oe.57.1.011001
https://doi.org/10.1117/1.oe.57.1.011001
Publikováno v:
Physical Review E. 87
We introduce a variant of the banded random matrix ensemble and show, using detailed numerical analysis and theoretical arguments, that the phonon heat current in disordered quasi-one-dimensional lattices obeys a one-parameter scaling law. The result
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::74eaccf21aef8524a8bcc8555c6fe0d2
https://doi.org/10.1103/physreve.87.020101
https://doi.org/10.1103/physreve.87.020101
Publikováno v:
CLEO: 2013.
Two separate contacts are incorporated into the different arms of Quantum Cascade lasers with asymmetric Mach-Zehnder interferometer type cavities. Preliminary results reveal an almost-continuous single mode tuning range of 20 cm−1 at 80K.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::94157271cb3d2602d364c820c5ed4a3b
https://doi.org/10.1364/cleo_si.2013.cm1k.7
https://doi.org/10.1364/cleo_si.2013.cm1k.7