Sökning: "David B. Haviland"

Visar resultat 6 - 10 av 11 avhandlingar innehållade orden David B. Haviland.

  1. 6. Reconstructing force from harmonic motion

    Författare :Daniel Platz; David B. Haviland; John E. Sader; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; oscillator; force spectroscopy; atomic force microscopy; intermodulation; multifrequency; inverse problem; high quality factor;

    Sammanfattning : High-quality factor oscillators are often used in measurements of verysmall force since they exhibit an enhanced sensitivity in the narrow frequencyband around resonance. Forces containing frequencies outside this frequencyband are often not detectable and the total force acting on the oscillatorremains unknown. LÄS MER

  3. 7. Superconducting kinetic inductance devices for nanoscale force sensing

    Författare :August K. Roos; David B. Haviland; Hélène le Sueur; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; optomechanics; force sensing; atomic force microscopy; kinetic inductance; superconductivity; strain; meandering nanowires; optomekanik; kraftavkänning; atomkraftsmikroskopi; kinetisk induktans; supraledning; töjning; slingrande nanotrådar; Material and Nano Physics; Material- och nanofysik;

    Sammanfattning : In this thesis, we present a force sensor for atomic force microscopy based on cavity optomechanical principles. We explain the function, design, fabrication and characterisation of the force sensor. The mechanical part of the force sensor consists of a cantilever with a very fine tip. LÄS MER

  4. 8. Nanometer Scale Protein Templates for Bionanotechnology Applications

    Författare :Jonas Rundqvist; David B. Haviland; Michael Grunze; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; nanotechnology; bionanotechnology; nanobiotechnology; electron beam lithography; EBL; poly ethylene glycol ; PEG; self-assembled monolayer; SAM; self-immobilization; protein pattern; Physics; Fysik;

    Sammanfattning : Nanofabrication techniques were used to manufacture nanometer scale protein templates. The fabrication approach employs electron beam lithography (EBL) patterning on poly(ethylene glycol) (PEG) thiol (CH3O(CH2CH2O)17NHCO(CH2)2SH) self-assembled monolayers (SAM) on Au. LÄS MER

  5. 9. Digital measurement and control of microwave quantum circuits

    Författare :Mats Tholén; Vladislav Korenivski; David B. Haviland; Stefan Filipp; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Superconducting circuits; circuit QED; quantum sensing; quantum capaci- tance; 3D cavity; bosonic codes; noise radar; instrumentation; supraledande kretsar; krets QED; kvantavkänning; kvantkapacitans; 3D ka- vitet; bosonic codes; brusradar; mätinstrument; Material and Nano Physics; Material- och nanofysik;

    Sammanfattning : Superconducting circuits are well established tools for quantum sensing anda promising new platform for quantum computing. Typically these quantumcircuits operate at microwave frequencies where the thermal noise at 10mK in a dilution refrigerator is small compared to the ground-state energy. LÄS MER

  7. 10. Investigating nano-scale viscous and elastic forces withintermodulation : Studies in multifrequency atomic force microscopy

    Författare :Per-Anders Thorén; David B. Haviland; Greg Haugstad; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Atomic Force Microscopy; Nonlinear dynamics; Soft materials; High- speed friction measurements; Modeling and numerical simulations; Fysik; Physics;

    Sammanfattning : Investigating visco-elastic forces at the nanometer-scale is important to thecharacterization of soft materials. A quantitative force measurement can be ob-tained using an atomic force microscope (AFM) with a calibrated force transducer(the AFM cantilever). LÄS MER