Výsledky vyhledávání - "Yujie J. Ding"

Upconversion Due to Optical-Phonon-Assisted Anti-Stokes Photoluminescence in Bulk GaN

Autor: Ruolin Chen, Guan Sun, Yujie J. Ding, Jacob B. Khurgin

Publikováno v: ACS Photonics. 2:628-632

We demonstrate that under optimized experimental conditions phonon-assisted anti-Stokes photoluminescence becomes the dominant light emission process in a free-standing GaN sample excited well below the bandgap. Potentially this up-conversion process

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5b686473beb861a27ef6ff7c55137a00
https://doi.org/10.1021/acsphotonics.5b00015

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InGaN/GaN dot-in-a-wire: ultimate terahertz nanostructure

Autor: Yujie J. Ding, Zetian Mi, Guan Sun, Ruolin Chen, Hieu Pham Trung Nguyen

Publikováno v: Laser & Photonics Reviews. 9:105-113

The terahertz (THz) radiation from InGaN/GaN dot-in-a-wire nanostructures has been investigated. A submicrowatt THz signal is generated with just ten vertically stacked InGaN quantum dots (QDs) in each GaN nanowire. Based on the experimental results

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::70236530d1a3a1f0ba54bfc4d9683218
https://doi.org/10.1002/lpor.201400138

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Generation of ultra-stable signal twins and idler twins by coupled optical parametric oscillators: applications in remote sensing

Autor: Pengda Hong, Yujie J. Ding

Publikováno v: Infrared Remote Sensing and Instrumentation XXV.

We will summarize the progress made on investigation of coupled optical parametric oscillators using a single pair of nonlinear-optical crystals forming the twins. A single signal is split into signal twins whereas a single idler is split into two id

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b5cd23b5b1f58de2dd2e8b40a576ea9d
https://doi.org/10.1117/12.2271517

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Restoration of image distorted by atmospheric turbulence achieved by optical phase conjugation

Autor: Jing Su, Pengda Hong, Yujie J. Ding

Publikováno v: Astronomical Optics: Design, Manufacture, and Test of Space and Ground Systems.

We systematically review our recent research results on reconstructing image quality by second order nonlinear crystal composites. The broadband and polarization-insensitive optical phase conjugated beams are generated with pretty low power, and they

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::80ab7b9ec629a83a12e64f4660d608ca
https://doi.org/10.1117/12.2271969

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Direct Measurement of Band Edge Discontinuity in Individual Core–Shell Nanowires by Photocurrent Spectroscopy

Autor: Ilio Miccoli, Tsachi Livneh, Hadas Shtrikman, Nico Lovergine, Yujie J. Ding, Guannan Chen, Jonathan E. Spanier, Guan Sun, Paola Prete, Patrick Kung

Publikováno v: Nano letters (Online) 13 (2013): 4152–4157. doi:10.1021/nl401737u
info:cnr-pdr/source/autori:Chen, Guannan; Sun, Guan; Ding, Yujie J; Prete, Paola; Miccoli, Ilio; Lovergine, Nico; Shtrikman, Hadas; Kung, Patrick; Livneh, Tsachi; Spanier, Jonathan E/titolo:DIRECT MEASUREMENT OF BAND EDGE DISCONTINUITY IN INDIVIDUAL CORE-SHELL NANOWIRES BY PHOTOCURRENT SPECTROSCOPY/doi:10.1021%2Fnl401737u/rivista:Nano letters (Online)/anno:2013/pagina_da:4152/pagina_a:4157/intervallo_pagine:4152–4157/volume:13

Group III-V coaxial core-shell semiconducting nanowire heterostructures possess unique advantages over their planar counterparts in logic, photovoltaic, and light-emitting devices. Dimensional confinement of electronic carriers and interface complexi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62eab74eb66e4ba059e4c798e802bb8b
https://doi.org/10.1021/nl401737u

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Resonant Raman scattering in GaN single crystals and GaN-based heterostructures: feasibility for laser cooling

Autor: Jacob B. Khurgin, Yujie J. Ding

Publikováno v: Chinese Optics Letters. 11:011901-11909

The recent progress on Raman scattering in GaN single crystals and GaN/AlN heterostructures is reviewed. Anti-Stokes Raman scattering is used to determine electron-phonon scattering time and decay time constant for longitudinal-optical phonons. In a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8faf22c1443c9f194fc03ff01c05976d
https://doi.org/10.3788/col201311.011901

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Enhancements of Raman oscillation and amplification and frequency upconversion by phonon-polariton resonances

Autor: Yujie J. Ding

Publikováno v: 2016 IEEE Photonics Conference (IPC).

Phonon-polariton resonances are manifestation of the strong interaction between an electromagnetic wave interacts and transverse-optical phonons in a crystalline solid. Such resonances result in great enhancements of ionic second-order nonlinearities

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::416cdd34995a09f4468237b3b19ca4e5
https://doi.org/10.1109/ipcon.2016.7831028

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