Wisconsin Alumni Research Foundation

Technology

Type II Quantum Well Laser Devices

Fiber optic transmission of data across large distances involves the use of laser transmitters that generally operate at three primary wavelengths: 850 nanometers, 1.3 microns and 1.55 microns. Minima...
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Luke Mawst, Nelson Tansu | P02243US

Technology

Nanoelectromechanical Switch in Co-Planar Waveguide

Microelectromechanical systems (MEMS) and nanoelectromechanical systems (NEMS) have been used to create mechanical resonators for switching, filtering and other purposes in electrical systems. NEMS/ME...
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Robert Blick, Hua Qin, Hyun-Seok Kim | P07084US

Technology

Photon-Sorting Spectroscopic Microscope System

Scanning optical microscopes, such as confocal microscopes, are of increasing importance for looking at living cells and other biological structures. By using fluorescent molecules like GFP (green flu...
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John White | P99237US

Technology

Modeless Wavelength-Agile Laser

Spectroscopic studies evaluate the response of a specimen to different colors of light. Lasers are normally used in spectroscopic studies; however, lasers typically operate in one or more cavity modes...
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Scott Sanders | P05034US

Technology

Rubbed Substrates for Liquid Crystals

Although many techniques have been developed for detecting the presence of target species in biological samples, most conventional assay methods are expensive and require complex instrumentation and h...
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Nicholas Abbott, Seung-Ryeol Kim | P00121US

Technology

Method and Device for Sensing Microfluidic Flow

Current approaches to sensing flow rates in microfluidic channels possess a number of disadvantages. They require expensive parts and additional machining, are limited to certain types of microfluidic...
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Amit Lal, Harun Solak, Shankar Radhakrishnan | P02005US

Technology

Narrow Lateral Waveguide Semiconductor Laser

High optical power density at the output facet of a semiconductor laser can adversely affect both the laser’s maximum optical power and its long-term reliability. Laser devices whose optical pow...
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Luke Mawst, Nelson Tansu, Michael Nesnidal, Steven Meassick, Eric Stiers, Darren Hansen, Troy Goodnough | P02318US

Technology

Plastic Cantilevers for Atomic Force Microscopy

The atomic force microscope (AFM), one of many types of scanned-proximity probe microscopes, images a sample by lightly touching it with a probe tip attached to the end of an extremely flexible leaf s...
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Daniel van der Weide, Andrew Stevens, Charles Paulson | P04378US

Technology

Microwave Dielectric Spectroscopy Method and Device

Proteins change conformation in solution for a variety of reasons, including events such as ligand binding. Most researchers use simple and readily available optical means to measure protein conformat...
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Daniel van der Weide, Kimberly Taylor | P02102US

Technology

Low-Power Liquid Crystal Switching Mechanism

Liquid crystal displays (LCDs) are found in a wide range of consumer products, including laptop computers, digital clocks, microwave ovens and CD players. But LCDs are currently unsuitable for certain...
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Nicholas Abbott, Yan-Yeung Luk | P02034US

WARF