Selim Olcum

Summary

Affiliation: Bilkent University
Country: Turkey

Publications

  1. ncbi request reprint Optimization of the gain-bandwidth product of capacitive micromachined ultrasonic transducers
    Selim Olcum
    Electrical and Electronics Engineering Department, Bilkent University, Ankara Turkey
    IEEE Trans Ultrason Ferroelectr Freq Control 52:2211-9. 2005
  2. ncbi request reprint Tunable surface plasmon resonance on an elastomeric substrate
    Selim Olcum
    Bilkent University, Electrical and Electronics Engineering Department, Ankara, Turkey
    Opt Express 17:8542-7. 2009
  3. doi request reprint Deep-collapse operation of capacitive micromachined ultrasonic transducers
    Selim Olcum
    Bilkent University, Electrical and Electronics Engineering Department, Ankara, Turkey
    IEEE Trans Ultrason Ferroelectr Freq Control 58:2475-83. 2011
  4. doi request reprint An equivalent circuit model for transmitting capacitive micromachined ultrasonic transducers in collapse mode
    Selim Olcum
    Bilkent University, Electrical and Electronics Engineering Department, Ankara, Turkey
    IEEE Trans Ultrason Ferroelectr Freq Control 58:1468-77. 2011
  5. ncbi request reprint Parametric linear modeling of circular cMUT membranes in vacuum
    Hayrettin Koymen
    Department, Bilkent University, Ankara, 06800 Turkey
    IEEE Trans Ultrason Ferroelectr Freq Control 54:1229-39. 2007
  6. doi request reprint Nonlinear modeling of an immersed transmitting capacitive micromachined ultrasonic transducer for harmonic balance analysis
    H Kagan Oguz
    Electronics Engineering Department, Bilkent University, Ankara, Turkey
    IEEE Trans Ultrason Ferroelectr Freq Control 57:438-47. 2010
  7. doi request reprint An improved lumped element nonlinear circuit model for a circular CMUT cell
    Hayrettin Koymen
    Electrical and Electronics Engineering Department, Bilkent University, Ankara, Turkey
    IEEE Trans Ultrason Ferroelectr Freq Control 59:1791-9. 2012
  8. ncbi request reprint Radiation impedance of an array of circular capacitive micromachined ultrasonic transducers
    Muhammed N Senlik
    Electrical and Electronics Engineering Department, Bilkent University, Ankara, Turkey
    IEEE Trans Ultrason Ferroelectr Freq Control 57:969-76. 2010
  9. ncbi request reprint Radiation impedance of collapsed capacitive micromachined ultrasonic transducers
    Alper Ozgurluk
    Electrical and Electronics Engineering Department, Bilkent University, Ankara, Turkey
    IEEE Trans Ultrason Ferroelectr Freq Control 59:1301-8. 2012
  10. ncbi request reprint Reducing anchor loss in micromechanical extensional mode resonators
    V Tas
    Bilkent University, Ankara, Turkey
    IEEE Trans Ultrason Ferroelectr Freq Control 57:448-54. 2010

Collaborators

Detail Information

Publications10

  1. ncbi request reprint Optimization of the gain-bandwidth product of capacitive micromachined ultrasonic transducers
    Selim Olcum
    Electrical and Electronics Engineering Department, Bilkent University, Ankara Turkey
    IEEE Trans Ultrason Ferroelectr Freq Control 52:2211-9. 2005
    ..In particular, the effect of a shunt inductor in the gain-bandwidth product is investigated. Design tools are introduced, which are used to determine optimal dimensions of cMUTs with the specified frequency or gain response...
  2. ncbi request reprint Tunable surface plasmon resonance on an elastomeric substrate
    Selim Olcum
    Bilkent University, Electrical and Electronics Engineering Department, Ankara, Turkey
    Opt Express 17:8542-7. 2009
    ..It's been demonstrated that the Raman signal can be maximized by applying an external mechanical strain to the elastomeric grating...
  3. doi request reprint Deep-collapse operation of capacitive micromachined ultrasonic transducers
    Selim Olcum
    Bilkent University, Electrical and Electronics Engineering Department, Ankara, Turkey
    IEEE Trans Ultrason Ferroelectr Freq Control 58:2475-83. 2011
    ..8 MHz with a 106% fractional bandwidth at the surface of the transducer with a collapse voltage of 35 V, when the pulse amplitude is 160 V. The experimental results are verified using transient FEM simulations...
  4. doi request reprint An equivalent circuit model for transmitting capacitive micromachined ultrasonic transducers in collapse mode
    Selim Olcum
    Bilkent University, Electrical and Electronics Engineering Department, Ankara, Turkey
    IEEE Trans Ultrason Ferroelectr Freq Control 58:1468-77. 2011
    ..The circuit model is in good agreement with experimental results of pulse excitation applied to fabricated CMUTs. The model is suitable as a powerful design and optimization tool for collapsed and uncollapsed CMUTs...
  5. ncbi request reprint Parametric linear modeling of circular cMUT membranes in vacuum
    Hayrettin Koymen
    Department, Bilkent University, Ankara, 06800 Turkey
    IEEE Trans Ultrason Ferroelectr Freq Control 54:1229-39. 2007
    ..Equivalent circuit model parameters can be found from material properties and membrane dimensions without a need for finite element simulation...
  6. doi request reprint Nonlinear modeling of an immersed transmitting capacitive micromachined ultrasonic transducer for harmonic balance analysis
    H Kagan Oguz
    Electronics Engineering Department, Bilkent University, Ankara, Turkey
    IEEE Trans Ultrason Ferroelectr Freq Control 57:438-47. 2010
    ..We observed much better agreement between FEM and the proposed equivalent model, compared with the conventional model...
  7. doi request reprint An improved lumped element nonlinear circuit model for a circular CMUT cell
    Hayrettin Koymen
    Electrical and Electronics Engineering Department, Bilkent University, Ankara, Turkey
    IEEE Trans Ultrason Ferroelectr Freq Control 59:1791-9. 2012
    ..The model can be implemented in circuit simulation tools and model predictions are in excellent agreement with finite element method simulations...
  8. ncbi request reprint Radiation impedance of an array of circular capacitive micromachined ultrasonic transducers
    Muhammed N Senlik
    Electrical and Electronics Engineering Department, Bilkent University, Ankara, Turkey
    IEEE Trans Ultrason Ferroelectr Freq Control 57:969-76. 2010
    ..25 wavelengths maximizes the radiation resistance, if the membranes are not too thin. It is also found that excitation of nonsymmetric modes may reduce the radiation resistance in immersion applications...
  9. ncbi request reprint Radiation impedance of collapsed capacitive micromachined ultrasonic transducers
    Alper Ozgurluk
    Electrical and Electronics Engineering Department, Bilkent University, Ankara, Turkey
    IEEE Trans Ultrason Ferroelectr Freq Control 59:1301-8. 2012
    ....
  10. ncbi request reprint Reducing anchor loss in micromechanical extensional mode resonators
    V Tas
    Bilkent University, Ankara, Turkey
    IEEE Trans Ultrason Ferroelectr Freq Control 57:448-54. 2010
    ..The electrical model gives results consistent with the finite element simulations. The proposed resonator is expected to have a very small anchor loss resulting in a very high Q...