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Boston College News
Metamaterial Shows Promise as THz Imager
CHESTNUT HILL, Mass., June 30, 2014 — An imaging approach involving metamaterials could make the terahertz regime more accessible. Researchers from Boston College, the University of New Mexico and Duke University engineered a low-power multiplex tunable spatial light modulator (SLM)...
Laser-guided codes advance THz imaging
CHESTNUT HILL, Mass. – A single-pixel imaging technique uses laser-guided codes to quickly and efficiently manipulate stubborn terahertz waves, producing clear images in a matter of seconds. Imaging and sensing using terahertz holds the potential to advance areas such as...
Laser-Guided Codes Advance Single-Pixel THz Imaging
CHESTNUT HILL, Mass., June 26, 2013 — A single-pixel imaging method capable of tuning terahertz radiation using laser-guided codes can produce clear images in a matter of seconds.
Metamaterial Engineers Blackbody Radiation
CHESTNUT HILL, Mass., July 27, 2011 — Thermophotovoltaics may get a boost from a new designer metamaterial that can engineer emitted blackbody radiation with an efficiency beyond the natural limits imposed by the material's temperature. A blackbody object represents a theorized...
Solar-Thermal Flat Panels Generate Electricity
CHESTNUT HILL, Mass., May 19, 2011 — High-performance nanotech materials arrayed on a flat panel platform have demonstrated seven to eight times higher efficiency than previous solar thermoelectric generators, opening up solar-thermal electric power conversion to a broad range of...
BC Receives Funding for Novel Microscope
CHESTNUT HILL, Mass., Feb. 9, 2011 — Boston College has been awarded a $1 million grant from the W.M. Keck Foundation to help develop a new microscope that uses a light-guiding "metamedium" to create images that reveal micro- and macroscopic matter with significantly improved clarity....
Solar design triumphs through thick and thin
Sep 1, 2010 — The quest for high power-conversion efficiency in most thin-film solar cells has often been hindered by the “thick and thin” challenge, in which a cell must be thick enough to collect a sufficient amount of light, yet thin enough to...
‘Nanocoax’ Solves Solar Cell Dilemma
CHESTNUT HILL, Mass., June 8, 2010 — Boston College researchers have developed a nanoscale solar cell inspired by the coaxial cable that offers greater efficiency than any previously designed nanotech thin film. The ‘nanocoax’ resolves the ‘thick and thin’...
Graphene Still a Great Thermal Conductor
CHESTNUT HILL, Mass., April 14, 2010 — The single-atom thick material graphene maintains its high thermal conductivity when supported by a substrate, a critical step to advancing the material from a laboratory phenomenon to a useful component in a range of nano-electronic devices. The...
Guiding light is not just a soap opera
BOSTON – Computers of the future may use light rather than electricity for logic functions. “There is this dream of the all-photonic circuit to guide light and perform functions,” commented Willie Padilla, a professor at Boston College. Such light-based...
Guiding Light Revealed
CHESTNUT HILL, Mass., July 31, 2009 – Using a composite metamaterial to deliver a complex set of instructions to a beam of light, Boston College physicists have created a device to guide electromagnetic waves around objects such as the corner of a building or the profile of the eastern...
Material Superabsorbs Light
CHESTNUT HILL, Mass., June 3, 2008 -- A metamaterial has been engineered that is capable of absorbing essentially all of the light that hits it.Using standard optical lithography techniques, a team from Boston College in Chestnut Hill and Duke University in Durham, N.C., designed and...
Nanotech Drives TE Boost
CHESTNUT HILL & CAMBRIDGE, Mass., March 21, 2008 -- Nanotechnology has been used to crush and then reconstitute a classic semiconductor used in industry and research, dramatically improving its ability to conduct electricity but not heat. The work could pave the way for a new generation of...
Transmitting Light Through a Coaxial Cable
Feb 1, 2007 — Taking a cue from radio and microwave transmission lines, researchers at Boston College in Chestnut Hill and at NanoLab Inc. in Newton, both in Massachusetts, as well as at the Center of Advanced European Studies and Research in Bonn, Germany, have...
Visible Light Transmitted Through Nanocable
CHESTNUT HILL, Mass., Jan 8, 2007 -- Physicists have beamed visible light through a cable hundreds of times smaller than a human hair, an achievement they said could lead to advances in solar power and optical computing. The discovery made at Boston College defies a key...
DNA-Based Nanowires can Create, Detect Light
PROVIDENCE, R.I., July 21, 2006 -- For the first time, a research team has used the coding power of DNA to create nanowires on top of carbon nanotube tips. The tiny new structures can create and detect light, and, with mechanical pressure, generate electricity. The wires' optical and...
Gold Nanoparticle Probes Display Efficient Photoluminescence
Jun 1, 2005 — Investigators at Boston College in Chestnut Hill, Mass., suggest that gold nanoparticles are attractive substitutes for fluorophores or semiconductor nanoparticles as labels in the imaging of microscopic biological structures. In a study published...
Two-Dimensional Silver Patterns Produced from Nanoparticles by Laser Fabrication
Apr 1, 2005 — A team at Boston College has fabricated structures of agglomerated silver nanoparticles using multiphoton absorption laser fabrication, with potential applications in optics. To produce the structures, the researchers illuminated polymer and...
Nanotubes Act Like Antennae for Light
Oct 1, 2004 — In a series of experiments with random arrays of multiwalled carbon nanotubes, scientists in Zhifeng Ren's group at Boston College, in collaboration with the US Army's Natick Soldier Center and Mega Wave Corp. in Boylston, all in Massachusetts, and...
New Resin Suitable for Multiphoton Polymerization
Jun 1, 2004 — Scientists at Boston College in Chestnut Hill, Mass., and at Boston University have developed an acrylate resin for multiphoton absorption polymerization. To demonstrate the mechanical and optical properties of the material, they have used it to...
No Hairs Were Harmed in This Experiment
May 7, 2004 — CHESTNUT HILL, Mass., May 7 -- Researchers have demonstrated the fabrication of microscopic polymeric structures on top of a human hair, without harming it. Boston College chemistry professor John T. Fourkas, in collaboration with Boston College...
Solar Electrons, Auroras Linked to Geomagnetic Storms
Jan 8, 2004 — LA JOLLA, Calif., Jan. 8 -- Using an orbiting camera designed to block the light from the sun and stars, an international team of solar physicists has been able, for the first time, to directly image clouds of electrons surrounding Earth that travel...
(22 results found)
May 2024
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