D. van der Weide
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Spectroscopic THz near-field microscope.
We demonstrate a scattering-type scanning near-field optical microscope (s-SNOM) with broadband THz illumination. A cantilevered W tip is used in tapping AFM mode. The direct scattering spectrum is… Expand
Direct electrical detection of hybridization at DNA-modified silicon surfaces.
- W. Cai, J. Peck, D. van der Weide, R. Hamers
- Chemistry, Medicine
- Biosensors & bioelectronics
- 15 April 2004
Electrochemical impedance spectroscopy was used to investigate the changes in interfacial electrical properties that arise when DNA-modified Si(111) surfaces are exposed to solution-phase DNA… Expand
Broadband 10-300 GHz stimulus-response sensing for chemical and biological entities.
- M. K. Choi, K. Taylor, A. Bettermann, D. van der Weide
- Physics, Medicine
- Physics in medicine and biology
- 7 November 2002
By illuminating the sample with a broadband 10-300 GHz stimulus and coherently detecting the response, we obtain reflection and transmission spectra of common powdered substances, and compare them as… Expand
Multiple-Antenna Microwave Ablation: Spatially Distributing Power Improves Thermal Profiles and Reduces Invasiveness.
- P. Laeseke, F. Lee, D. van der Weide, C. Brace
- Materials Science, Medicine
- Journal of interventional oncology
BACKGROUND: Microwave ablation is an emerging tumor ablation modality. To date, microwave systems have generally utilized single large-diameter antennas to deliver high input powers. OBJECTIVE: To… Expand
Quantitative scanning near-field microwave microscopy for thin film dielectric constant measurement.
- A. Karbassi, D. Ruf, +4 authors R. Stancliff
- Medicine, Physics
- The Review of scientific instruments
- 25 September 2008
We combine a scanning near-field microwave microscope with an atomic force microscope for use in localized thin film dielectric constant measurement, and demonstrate the capabilities of our system… Expand
Potential for detection of explosive and biological hazards with electronic terahertz systems
- M. K. Choi, A. Bettermann, D. van der Weide
- Medicine, Physics
- Philosophical Transactions of the Royal Society…
- 15 February 2004
The terahertz (THz) regime (0.1–10 THz) is rich with emerging possibilities in sensing, imaging and communications, with unique applications to screening for weapons, explosives and biohazards,… Expand
Stereolithographed MM-wave corrugated horn antennas
- P. Timbie, J. Grade, D. van der Weide, B. Maffei, G. Pisano
- International Conference on Infrared, Millimeter…
- 15 December 2011
We describe the fabrication and testing of corrugated horn antennas designed for operation in the W-band (75–110 GHz). These antennas are constructed using stereolithography and plated with copper.… Expand
Microwave ablation with multiple simultaneously powered small-gauge triaxial antennas: results from an in vivo swine liver model.
PURPOSE To prospectively investigate the ability of a single generator to power multiple small-diameter antennas and create large zones of ablation in an in vivo swine liver model. MATERIALS AND… Expand
Microwave ablation with a single small-gauge triaxial antenna: in vivo porcine liver model.
PURPOSE To evaluate the performance of a 17-gauge triaxial antenna at microwave ablation in an in vivo porcine liver model. MATERIALS AND METHODS This study was approved by the institutional animal… Expand
Nonlinear magnetic metamaterials.
- I. Shadrivov, A. Kozyrev, D. van der Weide, Y. Kivshar
- Medicine, Physics
- Optics express
- 8 December 2008
We study experimentally nonlinear tunable magnetic metamaterials operating at microwave frequencies. We fabricate the nonlinear metamaterial composed of double split-ring resonators where a varactor… Expand