Search Results - Optics

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Dilute-As AINAs Semiconductor Material for Ultraviolet Emitters
SUMMARY In this invention, a new material that is capable of producing light in the ultraviolet band of the electromagnetic spectrum has been developed. The material developed consists of a small amount of dilute As (Arsenic) in AlNAs (Aluminum-Nitride-Arsenic) material and is called dilute-As AlNAs alloy. This material has many unique properties t...
Published: 8/24/2015   |   Inventor(s): Nelson Tansu, Chee-Keong Tan
Category(s): Optical Networking and Sensors, Optics, Electronics
Proposal for a THz Spectroscopic Sensor Based on Semiconductor Quantum Cascade Lasers
SUMMARY There are a number of different types of laser based chemical sensors that can sense the absorption or refractive index of an analyte at a single or range of frequencies. Absorption spectroscopy is most common for gas sensing. Chemicals in condensed and liquid phases are sensed using evanescent-wave techniques that provide sensitive detecti...
Published: 8/4/2015   |   Inventor(s): Sushil Kumar, Sudeep Khanal, Le Zhao
Category(s): Biomaterials, Chemical & Electronics, Optics
Ultrathin Plasmonic Subtractive Color Filters for Transparent Display and Miniaturized Image and Display Technologies
SUMMARYLehigh University has developed a novel plasmonic subtractive color-filtering scheme, using an ultrathin nanostructured metal film. This approach relies on a fundamentally different color filtering mechanism than that of existing color filters, and achieves unusually high transmission efficiencies of 60-70% for simple architectures, and can ...
Published: 5/20/2014   |   Inventor(s): Filbert Bartoli, Beibei Zeng, Yongkang Gao
Category(s): Optics, Materials and Nanotechnology
Opto-fluidic Nanoparticle Detector
SUMMARY Lehigh University has developed a device for optical detection and identification of nanoparticles in fluids in real time. The device can be used to analyze natural or synthetic particles. This technology can provide enhanced detection sensitivity. As an example, for 100 nm particles this method can have up to 1000 folds of enhancement in d...
Published: 3/25/2010   |   Inventor(s): Daniel Ou-Yang, Xuanhong Cheng
Keywords(s): Microfiltration, Microfluidics, Nanofiltration, Optical Bottles, Optical Traps, POC, Point-of-Care, Virus
Category(s): Life Sciences, Optical Networking and Sensors, Optics