Essays about: "optical signal"
Showing result 1 - 5 of 139 essays containing the words optical signal.
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1. A Novel Method for Measuring Low Energy Excitations with BLS
University essay from Uppsala universitet/MaterialfysikAbstract : This report presents the work done on an optical setup combining Raman and BLS spectroscopy and discusses the achieved improvements of the system. After some general optimization and minor redesigning, a new alternative beam path was implemented. READ MORE
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2. Evaluating image analysis techniques for ultrasound optical tomography in breast tissue
University essay from Lunds universitet/Avdelningen för Biomedicinsk teknikAbstract : Breast cancer is the most commonly diagnosed cancer in the world today and early detection is crucial to minimize the mortality. ”Ultrasound optical tomography” (UOT) is a method under development for deep tissue imaging. READ MORE
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3. Quantum Espionage
University essay from KTH/Tillämpad fysikAbstract : This thesis investigates the security of optical fiber communication and demonstrates the feasibility of eavesdropping using different tapping methods and superconducting nanowire single-photon detectors (SNSPDs). Methods for surveillance against fiber intrusion are also investigated. READ MORE
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4. Wrist Angle Estimation Using Two Wearable Inertial Measurement Units
University essay from KTH/Medicinteknik och hälsosystemAbstract : Hand-intensive work is closely related to the prevalence of upper body and hand/wrist work-related musculoskeletal disorders (WMSDs) in office work, manufacturing, service industries, as well as the healthcare industry. Some risk factors include vibrations, forceful exertions, heavy manual handling, repetitive motions, and prolonged nonneutral wrist postures. READ MORE
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5. Development of a QRNG front-end for shot noise measurement : analysis of quantum shot noise originating from photodiodes
University essay from Linköpings universitet/InformationskodningAbstract : As one of the more mature quantum technologies, quantum random number generators (QRNGs) fill an important role in producing secure and private keys for use in cryptogra- phy in e.g. quantum key distribution (QKD) systems. Many available QRNGs are expen- sive and optical QRNGs often require complex optical setups. READ MORE