Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Chung Hong Hung"'
Autor:
Pradeep Senanayake, Majeed M. Hayat, Yuh-Renn Wu, Chung-Hong Hung, Diana L. Huffaker, Chi-Kang Li, Joshua Shapiro, Alan C. Farrell, David A. Ramirez
Publikováno v:
Nano Letters. 12:6448-6452
We demonstrate a nanopillar (NP) device structure for implementing plasmonically enhanced avalanche photodetector arrays with thin avalanche volumes (∼ 310 nm × 150 nm × 150 nm). A localized 3D electric field due to a core-shell PN junction in a
Autor:
Wook-Jae Lee, Andrew Lin, Alan C. Farrell, Chung-Hong Hung, Diana L. Huffaker, Pradeep Senanayake
Publikováno v:
Nano letters. 16(1)
InAs1-xSbx nanowires have recently attracted interest for infrared sensing applications due to the small bandgap and high thermal conductivity. However, previous reports on nanowire-based infrared sensors required low operating temperatures in order
Autor:
Georges El-Howayek, Pradeep Senanayake, Majeed M. Hayat, Marc Currie, Diana L. Huffaker, Alan C. Farrell, Chung-Hong Hung, Abhejit Rajagopal
Publikováno v:
Scientific Reports
Avalanche photodiodes (APDs) are essential components in quantum key distribution systems and active imaging systems requiring both ultrafast response time to measure photon time of flight and high gain to detect low photon flux. The internal gain of
Autor:
Pradeep Senanayake, Joshua Shapiro, Benjamin S. Williams, Andrew Lin, Diana L. Huffaker, Baolai Liang, Chung-Hong Hung
Publikováno v:
Nano Letters. 11:5279-5283
We demonstrate nanopillar- (NP) based plasmon-enhanced photodetectors (NP-PEPDs) operating in the near-infrared spectral regime. A novel fabrication technique produces subwavelength elongated nanoholes in a metal surface self-aligned to patterned NP
Autor:
Wook-Jae Lee, Chung Hong Hung, Pradeep Senanayake, Nick Y. Hsieh, Alan C. Farrell, Diana L. Huffaker
Publikováno v:
Image Sensing Technologies: Materials, Devices, Systems, and Applications II.
The size, weight and power (SWaP) of state of the art infrared focal plane arrays are limited by the pixel size approaching the diffraction limit. We investigate a novel detector architecture which allows improvements in detectivity by shrinking the
Publikováno v:
72nd Device Research Conference.
Semiconductor nanowires have proven to be a viable path towards nanoscale photodetectors, however the dramatic reduction in semiconductor absorption volume can have a negative effect on responsivity. In order to overcome the reduced absorption volume
Publikováno v:
Nature Communications
Nature Communications 4: Article number: 1497 (2013); Published: 19 February 2013; Updated: 4 July 2013. The labels for the x axis and optical absorption scale bar in Fig. 1c of this Article were inadvertently displaced during the production process.
Autor:
Chung-Hong Hung, Joshua Shapiro, Pradeep Senanayake, Benjamin S. Williams, Diana L. Huffaker, Adam C. Scofield, Andrew Lin
Publikováno v:
ResearcherID
We demonstrate 3D surface plasmon photoresponse in nanopillar arrays resulting in enhanced responsivity due to both Localized Surface Plasmon Resonances (LSPRs) and Surface Plasmon Polariton Bloch Waves (SPP-BWs). The LSPRs are excited due to a parti
Autor:
Diana L. Huffaker, Joshua Shapiro, Giacomo Mariani, Yue Wang, Sergey V. Prikhodko, Maher F. El-Kady, Andrew T. Lech, Richard B. Kaner, P. S. Wong, Chung-Hong Hung
Publikováno v:
Nano letters. 12(7)
Three-dimensional core-shell organic-inorganic hybrid solar cells with tunable properties are demonstrated via electropolymerization. Air-stable poly(3,4-ethylenedioxythiophene) (PEDOT) shells with controlled thicknesses are rapidly coated onto perio
Publikováno v:
IEEE Photonic Society 24th Annual Meeting.
We demonstrate surface plasmon-enhaced nanopillar (NP) photodetector arrays in the near IR spectral range. Light coupling into the NPs takes place via surface plasmons through subwavelength, self-aligned metal holes. A novel fabrication technique pro