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Browsing Mühendislik Fakültesi by Author "51304"

Browsing Mühendislik Fakültesi by Author "51304"

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  • BER for Higher Order Laser Modes in Optical Wireless Underwater Communications 
    Altay Arpalı, Serap; Baykal, Yahya; Arpalı, Çağlar (IEEE, 2016)
    Average bit error rate (<BER>) of an underwater optical communication system is analyzed for higher order laser beams. For this purpose, the effects of oceanic turbulence parameters and link parameters on single mode higher ...
  • Bit Error Rate of A Gaussian Beam Propagating Through Biological Tissue 
    Altay Arpalı, Serap; Arpalı, Çağlar; Baykal, Yahya (Bit Error Rate of A Gaussian Beam Propagating Through Biological Tissue, 2020-01-23)
    The scintillation index and bit error rate (BER) of a Gaussian beam propagating in a weakly turbulent soft tissue are formulated and analysed numerically. The scintillation indices are plotted against half of the measured ...
  • Bit error rates for focused general-type beams 
    Altay Arpalı, Serap; Baykal, Yahya (Electromagnetics Acad, 2009)
    Using the scintillation index of general beam formulation, bit error rate (BER) is investigated for focused Gaussian, cos-Gaussian, cosh-Gaussian and annular beams in weak atmospheric turbulence. We have employed our ...
  • Bit error rates for general beams 
    Altay Arpalı, Serap; Eyyuboğlu, Halil T.; Baykal, Yahya (Optical Soc Amer, 2008-11-10)
    In order to analyze the effect of beam type on free space optical communication systems, bit error rate (BER) values versus signal-to-noise ratio (SNR) are calculated for zero order and higher order general beam types, ...
  • Fluorescent on-chip imager by using a tunable absorption filter 
    Arpalı, Çağlar; Yıldırım, Ender; Altay Arpalı, Serap (IEEE, 2017)
  • High-Throughput Screening of Large Volumes of Whole Blood Using Structured Illumination and Fluorescent On-Chip Imaging 
    Altay Arpalı, Serap; Arpalı, Çağlar; Coşkun, Ahmet F.; Chiang, Hsin-Hao; Özcan, Aydoğan (Royal Soc Chemistry,, 2012)
    Undiluted blood samples are difficult to image in large volumes since blood constitutes a highly absorbing and scattering medium. As a result of this limitation, optical imaging of rare cells (e.g., circulating tumour ...
  • Implementation and characterization of an absorption filter for on-chip fluorescent imaging 
    Yıldırım, Ender; Arpalı, Çağlar; Altay Arpalı, Serap (Elsevier Science S A, 2017-04)
    Here we present fabrication and characterization of an absorption filter with superior roll-on properties and precisely tunable cut-off wavelengths for fluorescent imaging applications in lab-on-a-chip systems. The filters ...
  • Lensfree on-chip fluorescence microscopy for high-throughput imaging of bio-chips 
    Coşkun, Ahmet F.; Arpalı, Serap Altay; Arpalı, Çağlar; Su, Ting-Wei; Sencan, İkbal; Herman, David; Suh, Yeongseok; Özcan, Aydoğan (2014)
    On-chip fluorescence microscopy is an emerging platform that enables high-throughput screening of bio-chips over a wide field-of-view without the use of any lenses, thin-film filters or mechanical scanners. In this review, ...
  • Performance Analysis Of Optical Spherical Wave İn Biological Tissue 
    Altay Arpali, Serap (2021-12-31)
    In this study, bit error rate (BER) of optical spherical wave is investigated to analyze the performance of spherical wave through in soft tissue. Within this scope, average BERs (<BER>) of optical spherical wave are ...
  • Propagation characteristics of higher-order annular Gaussian beams in atmospheric turbulence 
    Eyyuboğlu, Halil T.; Altay Arpalı, Serap; Baykal, Yahya (Elsevier Science, 2006-02-15)
    The propagation characteristics of higher-order annular Gaussian (HOAG) beams in turbulence are investigated. From a HOAG source plane excitation, the average intensity of the receiver plane is developed analytically. This ...
  • Propagation of optical flat-topped gaussian beams in satellite links 
    Kamacıoğlu, Canan; Altay Arpalı, Serap; Baykal, Yahya; Yazgan, Erdem (IEEE, 2009)
    Propagation of optical flat-topped Gaussian beams in earth-satellite optical communication links is investigated where part of the link is turbulent atmosphere. Flat-topped Gaussian source field is obtained by superposing ...
  • Scintillation index of higher-order cos-Gaussian, cosh-Gaussian and annular beams 
    Altay Arpalı, Serap; Eyyuboğlu, Halil T.; Baykal, Yahya (Taylor&Francis LTD, 2008)
    In this paper, via the generalized beam formulation, we evaluate the scintillation index for higher-order general beams propagating through the weak atmospheric turbulence. The investigated higher-order beam types are ...
  • Scintillation index of optical spherical wave propagating through biological tissue 
    Baykal, Yahya; Arpalı, Çağlar; Altay Arpalı, Serap (Taylor&Francis, 2017)
    Effects of the tissue turbulence on the propagation of an optical spherical wave are analysed. For this purpose, scintillation index of an optical spherical wave which is propagating in a soft tissue is formulated and ...
  • Simulator for general-type beam propagation in turbulent atmosphere 
    Arpalı, Çağlar; Yazıcıoğlu, Canan; Eyyuboğlu, Halil T.; Altay Arpalı, Serap; Baykal, Yahya (Optical Society of America, 2006-10)
    A simulator is designed in MATLAB code which gives the propagation characteristics of a general-type beam in turbulent atmosphere. When the required source and medium parameters are entered, the simulator yields the average ...