Results 121 to 130 of about 2,090,001 (315)

Mid‐Infrared Optoelectronic Waveguide Devices with 2D Materials

Advanced Physics Research
Mid‐infrared (Mid‐IR) integrated optics has tremendous applications in spectroscopic sensing, imaging, and ranging. Compared with visible light and near‐IR wavelengths, the study of mid‐IR photonic integrated devices is limited due to the need for more ...
Liqiang Qi, Tianping Xu, Zhengkun Xing, Si Chen, Zunyue Zhang, Tiegen Liu, Zhenzhou Cheng   +6 more
doaj   +1 more source

High Resolution Mid-Infrared Imaging of Ultraluminous Infrared Galaxies [PDF]

, 1999
Observations of ultraluminous infrared galaxies (ULIRGs) with an achieved resolution approaching the diffraction limit in the mid-infrared from 8 - 25 $\mu$m using the Keck Telescopes are reported.
A. J. Weinberger, A. S. Evans, B. T. Soifer, Boksenberg A., E. E. Becklin, E. Egami, Elias H., G. Neugebauer, J. A. Surace, J. J. Condon, K. Matthews, M. Ressler, M. W. Werner, Martin J. M., N. Z. Scoville, Werner M. W.   +15 more
core   +4 more sources

Zero-bias mid-infrared graphene photodetectors with bulk photoresponse and calibration-free polarization detection

Nature Communications, 2020
Bulk photovoltaic effect (BPVE), featuring polarization-dependent uniform photoresponse at zero external bias, holds potential for exceeding the Shockley-Queisser limit in the efficiency of existing opto-electronic devices. However, the implementation of
Jingxuan Wei, Ying Li, Lin Wang, W. Liao, B. Dong, Cheng Xu, Chunxiang Zhu, K. Ang, C. Qiu, Chengkuo Lee   +9 more
semanticscholar   +1 more source

Cardiac‐Derived ECM Microspheres for Enhanced hiPSC‐CMs Maturation

Advanced Functional Materials, EarlyView.
Cardiac extracellular matrix microspheres derived from decellularized porcine heart provide a biomimetic 3D microenvironment for human induced pluripotent stem cell–derived cardiomyocytes (hiPSC‐CMs). This platform supports short‐ and long‐term culture, enhances structural organization, and promotes electrophysiological and functional maturation of ...
Jiazhu Xu, Joel Aboagye, Marcella Edwards, Nick Rogozinski, Yufeng Wen, Angello Huerta Gomez, Zui Pan, Ge Zhang, Huaxiao Yang, Yi Hong   +9 more
wiley   +1 more source

GeAsSeTe/GeAsSe Pedestal Waveguides for Long-Wave Infrared Tunable on-Chip Spectroscopy

Photonics
A dry-etched pedestal chalcogenide waveguide platform, designed for use in long-wave IR spectrometer applications, is demonstrated, fabricated and optically characterized.
Vasileios Mourgelas, Sirawit Boonsit, James Shafto Wilkinson, Ganapathy Senthil Murugan   +3 more
doaj   +1 more source

Silicon-Chip Mid-Infrared Frequency Comb Generation

, 2014
Optical frequency combs represent a revolutionary technology for high precision spectroscopy due to their narrow linewidths and precise frequency spacing.
Cardenas, Jaime, Fain, Romy, Gaeta, Alexander L., Griffith, Austin G., Lau, Ryan K. W., Lee, Yoon Ho Daniel, Lipson, Michal, Mohanty, Aseema, Okawachi, Yoshitomo, Phare, Christopher T., Poitras, Carl B., Yu, Mengjie   +11 more
core   +1 more source

Mid-infrared upconversion spectroscopy [PDF]

Journal of the Optical Society of America B, 2016
Mid-infrared (MIR) spectroscopy is emerging as an attractive alternative to near-infrared or visible spectroscopy. MIR spectroscopy offers a unique possibility to probe the fundamental absorption bands of a large number of gases as well as the vibrational spectra of complex molecules.
Tidemand-Lichtenberg, Peter, Dam, Jeppe Seidelin, Andersen, H. V., Høgstedt, Lasse, Pedersen, Christian   +4 more
openaire   +2 more sources

High Entropy Wide‐Bandgap Borates with Broadband Luminescence and Large Nonlinear Optical properties

Advanced Functional Materials, EarlyView.
High‐entropy rare‐earth borates exhibit excellent nonlinear optical and broadband luminescence properties arising from multi‐component doping, chemical disorder, increased configurational entropy, and increased lattice and electronic anharmonicity. This formulation enabled us to obtain a large, environmentally stable single crystal with 3X higher laser‐
Saugata Sarker, Yu Wang, Yongwen Sun, Caeli Benyacko, Saeed S.I. Almishal, Tao Zhou, Zhiyu Zhang, Jadupati Nag, Himirkanti Sarkar, Jeffrey Shallenberger, Hemant Yennawar, Yang Yang, Jon‐Paul Maria, Zhiqiang Mao, Venkatraman Gopalan   +14 more
wiley   +1 more source

Simultaneous Mid-Infrared Gas Sensing and Upconversion Based on Third Harmonic Generation in Cascaded Waveguides

IEEE Photonics Journal, 2020
The performance of conventional gas sensors based on light absorption in the mid-infrared are limited by the high-cost and low efficiency of photon detection at these wavelengths. In this paper, cascaded suspended waveguides are proposed and analyzed for
Jianxing Pan, Zhenxing Chen, Tianye Huang, Shuwen Zeng, Zhuo Cheng, Pan Huang, Xiang Zhao, Perry Ping Shum, Gilberto Brambilla   +8 more
doaj   +1 more source

Non-invasive, opsin-free mid-infrared modulation activates cortical neurons and accelerates associative learning

Nature Communications, 2020
Neurostimulant drugs or magnetic/electrical stimulation techniques can overcome attention deficits, but these drugs or techniques are weakly beneficial in boosting the learning capabilities of healthy subjects.
Jianxiong Zhang, Yong He, Shanshan Liang, Xiang Liao, Tong Li, Z. Qiao, Chao Chang, Hongbo Jia, Xiaowei Chen   +8 more
semanticscholar   +1 more source