Sökning: "Optical coherence tomography"

Visar resultat 1 - 5 av 25 avhandlingar innehållade orden Optical coherence tomography.

  1. 1. Optical Coherence Tomography for Dermatological Applications

    Författare :Jakob Borup Thomsen; Atomfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; medical imaging; skin cancer diagnostics; optical imaging; blood flow; treatment monitoring;

    Sammanfattning : Optical coherence tomography (OCT) is a non-invasive optical imaging technique providing approximately 10 micrometer resolution of tissue in vivo. Within ophthalmology, OCT has already proven its value and is routinely used for diagnosing retinal diseases. LÄS MER

  3. 2. Improved inspection and micrometrology of embedded structures in multi-layered ceramics : Development of optical coherence tomographic methods and tools

    Författare :Rong Su; Lars Mattsson; Peter Ekberg; Jerzy Pluciński; KTH; []
    Nyckelord :Metrology; Optical Coherence Tomography; Ceramics; Embedded Structure; Multilayer; Nondestructive Testing; Optical Inspection; Critical Dimension Measurement; Infrared Imaging; Scattering; Mie Calculation; Image Processing; Monte Carlo Simulation; 测量学， 光学相干断层扫描术，陶瓷，嵌入式结构，多层，无损检测，光学检测，关键尺寸测量，红外成像，散射，Mie计算，图像处理，Monte Carlo模拟; SRA - Production; SRA - Produktion;

    Sammanfattning : Roll-to-roll manufacturing of micro components based on advanced printing, structuring and lamination of ceramic tapes is rapidly progressing. This large-scale and cost-effective manufacturing process of ceramic micro devices is however prone to hide defects within the visually opaque tape stacks. LÄS MER

  4. 3. Assessment of optical coherence tomography for metrology applications in high-scattering ceramic materials

    Författare :Rong Su; Lars Mattsson; Hjalmer Granberg; KTH; []
    Nyckelord :metrology; optical coherence tomography; alumina ceramics; nondestructive testing; imaging through turbid media; light scattering; image processing; numerical approximation and analysis; Monte Carlo method;

    Sammanfattning : Large-scale and cost-effective manufacturing of ceramic micro devices based on tape stacking requires the development of inspection systems to perform high-resolution in-process quality control of embedded manufactured cavities, metal structures and defects.In this work, alumina ceramic samples are evaluated by optical coherence tomography (OCT) operating at 1. LÄS MER

  5. 4. Retinal ganglion cell examination with Optical Coherence Tomography reflects physiological and pathological changes in the eye and the brain

    Författare :Abbas Al-Hawasi; Neil Lagali; Yumin Link; Per Fagerholm; Per Söderberg; Linköpings universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Retinal ganglion cell; Retinal nerve fiber layer; Optical Coherence Tomography;

    Sammanfattning : The retinal ganglion cell is situated in the inner retina and its axons, composing the retinal nerve fiber layer (RNFL), leave the eye to form the optic nerve. These cells develop embryologically from the forebrain and later during development re-establish connections with different parts of the brain serving different purposes. LÄS MER

  7. 5. Low noise frequency combs and their use in broadly tunable lasers and optical coherence tomography

    Författare :Connor Skehan; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Optical frequency comb; optical injection locking; comb noise;

    Sammanfattning : Frequency combs revolutionized the world of laser physics by providing a link between the microwave and optical domains. Such a link allows for precise knowledge of any comb line’s absolute average location, as well as the average spacing between any two comb lines. LÄS MER