Zobrazeno 1 - 10
of 216
pro vyhledávání: '"Marek Osinski"'
Autor:
Nathan J. Withers, Roman Sobolewski, Troy A. Hutchins-Delgado, Petra M. Peirce, Marek Osinski, Sami A. Nazib, Ivan Komissarov, Arash Mafi, Benjamin C. Utzinger, Mark V. Reymatias, Erika M. Sommer, Tzu-Ming Lu, Genyu Chen, Hosuk Lee, Aadit Sharma, Loic H. Djamen Tchapda, John Nogan
Publikováno v:
2021 IEEE Research and Applications of Photonics in Defense Conference (RAPID).
We report on design, fabrication, and characterization of silicon quantum photonic integrated circuits comprising superconducting nanostripe single-photon detectors integrated with dielectric optical waveguides. In order to enhance absorption of phot
Autor:
Nathan J. Withers, Marek Osinski, Dale L. Huber, Gema J. Alas, Landon A. Schmucker, DeYannah J. Walker, Sergei A. Ivanov, Adreanna G. Rael, Alexander Neumann, Arjun Senthil, Shruti I. Gharde, Gennady A. Smolyakov, Rafael A. Castro, John Watt, Mark V. Reymatias
Publikováno v:
2021 IEEE Research and Applications of Photonics in Defense Conference (RAPID).
We have developed a novel method of pump-probe luminescence thermometry based on the detection of photoluminescence signal phase change versus power of the pumping laser, and applied it to studies of optical cooling from colloidal quantum dots embedd
Publikováno v:
2021 IEEE 21st International Conference on Nanotechnology (NANO).
We design and analyze the optical properties of multilayered metal-dielectric fishnet metastructures using fullwave numerical simulations. We report negative refraction at the infrared spectral range with low loss. Most previous studies reported nega
Autor:
Nathan J. Withers, Rafael A. Castro, Gema J. Alas, Dale L. Huber, Gennady A. Smolyakov, Adreanna G. Rael, Arjun Senthil, DeYannah J. Walker, Shruti I. Gharde, Sergei A. Ivanov, Mark V. Reymatias, Marek Osinski
Publikováno v:
Colloidal Nanoparticles for Biomedical Applications XV.
Colloidal quantum dots (QDs) emitting in the near-infrared (NIR) spectrum are of interest for many biomedical applications, including bioimaging, biosensing, drug delivery, and photodynamic therapy. However, a significant limitation is that QDs are t
Autor:
Arjun Senthil, Nathan J. Withers, Marek Osinski, Adreanna G. Rael, John Watt, Sergei A. Ivanov, Shruti I. Gharde, Dale L. Huber, DeYannah J. Walker, Dominic Bosomtwi, Nhi Nguyen, Mark V. Reymatias, Gema J. Alas
Publikováno v:
Colloidal Nanoparticles for Biomedical Applications XV.
CdSexS1-x/ZnS quantum dots (QDs) can cover a broader spectral range than the commonly used CdSe/ZnS QDs and are potentially useful as biomarkers for tagging cell lines such as HeLa, A549, and MCF-7 due to their high photoluminescence intensity and st
Autor:
Dominic Bosomtwi, Adreanna G. Rael, Nathan J. Withers, Yuliya Kuznetsova, Gema J. Alas, Alexander Neumann, Hosuk Lee, DeYannah J. Walker, Gennady A. Smolyakov, Sergei A. Ivanov, Shruti I. Gharde, Troy A. Hutchins-Delgado, Sami A. Nazib, Marek Osinski, Dale L. Huber, Arjun Senthil, Mark V. Reymatias
Publikováno v:
Photonic Heat Engines: Science and Applications II.
Anti-Stokes photoluminescence from colloidal CdSeS/ZnS quantum dots (QDs) is observed. The QDs were inserted into the core of wider-bandgap SiO2/Si3N4/SiO2 structure by thin film deposition and confirmed as promising nanoemitters for laser cooling du
Autor:
Ivan Komissarov, Avril A. Mesa-Olivo, Nathan J. Withers, John Nogan, Hosuk Lee, Troy A. Hutchins-Delgado, Sami A. Nazib, Jarrett L. Smalley, Arash Mafi, Marek Osinski, Roman Sobolewski
Publikováno v:
OSA Quantum 2.0 Conference.
We report on design, fabrication, and characterization of superconducting nanostripe single-photon detectors integrated with dielectric optical waveguides, whereby part of the upper cladding is removed to enhance absorption of photons by the supercon
Publikováno v:
Optical Materials Express. 11:3232
A stronger electric field in metal nanostructures can be realized by exciting nanoparticle plasmonic resonances to enhance hot electron generation. One can alter the nanoparticle shape, size, material, and/or the refractive index of the surrounding m
Autor:
Nathan J. Withers, Marek Osinski, Gennady A. Smolyakov, Troy A. Hutchins-Delgado, Sami A. Nazib
Publikováno v:
2019 IEEE Photonics Society Summer Topical Meeting Series (SUM).
Large-signal analog modulation of strongly injection-locked single and cascaded whistle-geometry semiconductor ring lasers is analyzed. Advantages of strong injection locking for high-fidelity large-signal modulation are confirmed through numerical m
Autor:
Troy A. Hutchins-Delgado, Sami A. Nazib, Hosuk Lee, Emma J. Renteria, Diana Magana Contreras, John Nogan, Sadhvikas Addamane, Nathan J. Withers, Marek Osinski, Ganesh Balakrishnan, Estania Jean Charles
Publikováno v:
Physics and Simulation of Optoelectronic Devices XXVII.
Phosphorus-free multiple-quantum-well lasers with In0.53Ga0.47As wells, In0.53Al0.2Ga0.27As barriers, and In0.53Al0.47As claddings have been fabricated as Fabry-Perot devices of different lengths and widths. Their current-voltage and light-current ch