Stavros G Demos

Summary

Affiliation: Lawrence Livermore National Laboratory
Country: USA

Publications

  1. doi request reprint Time-resolved imaging of processes associated with exit-surface damage growth in fused silica following exposure to nanosecond laser pulses
    Stavros G Demos
    Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, USA
    Opt Express 21:4875-88. 2013
  2. doi request reprint Change of self-focusing behavior of phosphate glass resulting from exposure to ultraviolet nanosecond laser pulses
    Stavros G Demos
    Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA 94551, USA
    Opt Express 21:4854-63. 2013
  3. doi request reprint Measurement of the Raman scattering cross section of the breathing mode in KDP and DKDP crystals
    Stavros G Demos
    Lawrence Livermore National Laboratory, 7000 East Ave, Livermore, CA 94551, USA
    Opt Express 19:21050-9. 2011
  4. doi request reprint Investigation of the electronic and physical properties of defect structures responsible for laser-induced damage in DKDP crystals
    Stavros G Demos
    Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
    Opt Express 18:13788-804. 2010
  5. ncbi request reprint Near-infrared autofluorescence imaging for detection of cancer
    Stavros G Demos
    Lawrence Livermore National Laboratory, PO Box 808, L 411, Livermore, CA 94551, USA
    J Biomed Opt 9:587-92. 2004
  6. ncbi request reprint Real time assessment of RF cardiac tissue ablation with optical spectroscopy
    Stavros G Demos
    University of California, Davis, Center for Biophotonics, Sacramento, CA 95817, USA
    Opt Express 16:15286-96. 2008
  7. ncbi request reprint Spectroscopic detection of bladder cancer using near-infrared imaging techniques
    Stavros G Demos
    Lawrence Livermore National Laboratory, Livermore, California 94551University of California Davis Medical School, Medical Center, Sacramento, California 95817, USA
    J Biomed Opt 9:767-71. 2004
  8. ncbi request reprint Advances in optical spectroscopy and imaging of breast lesions
    Stavros G Demos
    Lawrence Livermore National Laboratory, 7000 East Ave, Livermore, CA 94551, USA
    J Mammary Gland Biol Neoplasia 11:165-81. 2006
  9. doi request reprint Characterizing the origin of autofluorescence in human esophageal epithelium under ultraviolet excitation
    Bevin Lin
    University of California, Davis NSF Center for Biophotonics Science and Technology, 4800 2nd Avenue, Sacramento, CA 95817, USA
    Opt Express 18:21074-82. 2010
  10. doi request reprint Establishment of rules for interpreting ultraviolet autofluorescence microscopy images for noninvasive detection of Barrett's esophagus and dysplasia
    Bevin Lin
    University of California, Davis, NSF Center for Biophotonics Science and Technology, 4800 2nd Avenue, Sacramento, California 95817, USA
    J Biomed Opt 17:016013. 2012

Collaborators

Detail Information

Publications21

  1. doi request reprint Time-resolved imaging of processes associated with exit-surface damage growth in fused silica following exposure to nanosecond laser pulses
    Stavros G Demos
    Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, USA
    Opt Express 21:4875-88. 2013
    ....
  2. doi request reprint Change of self-focusing behavior of phosphate glass resulting from exposure to ultraviolet nanosecond laser pulses
    Stavros G Demos
    Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA 94551, USA
    Opt Express 21:4854-63. 2013
    ..A model is used to fit the experimental data and obtain an estimated range of values for the modified linear and nonlinear indices of refraction...
  3. doi request reprint Measurement of the Raman scattering cross section of the breathing mode in KDP and DKDP crystals
    Stavros G Demos
    Lawrence Livermore National Laboratory, 7000 East Ave, Livermore, CA 94551, USA
    Opt Express 19:21050-9. 2011
    ....
  4. doi request reprint Investigation of the electronic and physical properties of defect structures responsible for laser-induced damage in DKDP crystals
    Stavros G Demos
    Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
    Opt Express 18:13788-804. 2010
    ....
  5. ncbi request reprint Near-infrared autofluorescence imaging for detection of cancer
    Stavros G Demos
    Lawrence Livermore National Laboratory, PO Box 808, L 411, Livermore, CA 94551, USA
    J Biomed Opt 9:587-92. 2004
    ..This difference provided the basis for the detection of cancer and delineation of the tumor margins. Variations on the relative intensity were observed among different tissue types and excitation wavelengths...
  6. ncbi request reprint Real time assessment of RF cardiac tissue ablation with optical spectroscopy
    Stavros G Demos
    University of California, Davis, Center for Biophotonics, Sacramento, CA 95817, USA
    Opt Express 16:15286-96. 2008
    ....
  7. ncbi request reprint Spectroscopic detection of bladder cancer using near-infrared imaging techniques
    Stavros G Demos
    Lawrence Livermore National Laboratory, Livermore, California 94551University of California Davis Medical School, Medical Center, Sacramento, California 95817, USA
    J Biomed Opt 9:767-71. 2004
    ....
  8. ncbi request reprint Advances in optical spectroscopy and imaging of breast lesions
    Stavros G Demos
    Lawrence Livermore National Laboratory, 7000 East Ave, Livermore, CA 94551, USA
    J Mammary Gland Biol Neoplasia 11:165-81. 2006
    ..Three-dimensional optical imaging of the breast using various illumination and signal collection schemes in combination with image reconstruction algorithms may provide a new tool for cancer detection and treatment monitoring...
  9. doi request reprint Characterizing the origin of autofluorescence in human esophageal epithelium under ultraviolet excitation
    Bevin Lin
    University of California, Davis NSF Center for Biophotonics Science and Technology, 4800 2nd Avenue, Sacramento, CA 95817, USA
    Opt Express 18:21074-82. 2010
    ..This technique can simultaneously provide functional and structural imaging of the microstructure using only the intrinsic tissue fluorophores...
  10. doi request reprint Establishment of rules for interpreting ultraviolet autofluorescence microscopy images for noninvasive detection of Barrett's esophagus and dysplasia
    Bevin Lin
    University of California, Davis, NSF Center for Biophotonics Science and Technology, 4800 2nd Avenue, Sacramento, California 95817, USA
    J Biomed Opt 17:016013. 2012
    ..Our experimental results indicate that UV AF microscopy could provide real-time histological information for visualizing changes in tissue microstructure that are currently undetectable using conventional endoscopic methods...
  11. ncbi request reprint A non-contact method and instrumentation to monitor renal ischemia and reperfusion with optical spectroscopy
    Rajesh N Raman
    University of California, Davis, Dept of Applied Science, One Shields Ave, Davis, CA 95616, USA
    Opt Express 17:894-905. 2009
    ..Preliminary pre-clinical in vivo test of the probe system was carried out using the same rat model...
  12. doi request reprint Characterization of ejected fused silica particles following surface breakdown with nanosecond pulses
    Rajesh N Raman
    Lawrence Livermore National Laboratory, Livermore, California 94550, USA
    Opt Express 20:27708-24. 2012
    ..Assuming the emission is thermal in origin, data suggest an initial average temperature on the order of at least 0.5 eV...
  13. doi request reprint Endomicroscopy imaging of epithelial structures using tissue autofluorescence
    Bevin Lin
    University of California, Davis, NSF Center for Biophotonics Science and Technology, 4800 2nd Avenue, Sacramento, California 95817, USA
    J Biomed Opt 16:046014. 2011
    ..Preliminary results using ex vivo animal and human tissue specimens suggest that this technology can be translated toward in vivo application to address the need for real-time histology...
  14. ncbi request reprint Quantification of in vivo autofluorescence dynamics during renal ischemia and reperfusion under 355 nm excitation
    Rajesh N Raman
    University of California, Davis, Center for Biophotonics, Sacramento, CA 95817, USA
    Opt Express 16:4930-44. 2008
    ..Time constants were extracted from fits to the experimental data and their average values were found to increase with injury time...
  15. ncbi request reprint Real-time assessment of in vivo renal ischemia using laser autofluorescence imaging
    Jason T Fitzgerald
    University of California, Davis Medical Center, Department of Surgery, Sacramento, California 95817, USA
    J Biomed Opt 10:44018. 2005
    ..Normalizing autofluorescence changes under 335 nm using the autofluorescence measured under 260-nm excitation may eliminate the need for a control kidney...
  16. pmc An optical imaging method to monitor stem cell migration in a model of immune-mediated arthritis
    Elizabeth J Sutton
    Department of Radiology, University of California, San Francisco, 185 Berry Street, Suite 350, San Francisco, CA 94107 0946, USA
    Opt Express 17:24403-13. 2009
    ..The experimental results indicate that DiD integrated into the cell membrane. DiD-labeled MSC localization in the arthritic ankle joints was observed with OI indicating that this method can be applied to monitor MSC in arthritic joints...
  17. doi request reprint In vivo testing of a prototype system providing simultaneous white light and near infrared autofluorescence image acquisition for detection of bladder cancer
    Michael C Jacobson
    UC Davis Medical Center, Department of Urology, 4860 Y St, Suite 2200, Sacramento, California 95817, USA
    J Biomed Opt 17:036011. 2012
    ..The experimental results demonstrate the capabilities of this instrumentation design, imaging methodology, and define the current limitation for further development of the system...
  18. ncbi request reprint Real-time microscopic imaging of esophageal epithelial disease with autofluorescence under ultraviolet excitation
    Bevin Lin
    University of California, Davis NSF Center for Biophotonics Science and Technology, 2700 Stockton Boulevard, Suite 1400, Sacramento, CA 95817, USA
    Opt Express 17:12502-9. 2009
    ..The experiments were performed using ex vivo human esophagus biopsy specimens. The results indicate that cellular morphology information related to disease progression is attainable without tissue preparation...
  19. ncbi request reprint Spectroscopic imaging for detection of ischemic injury in rat kidneys by use of changes in intrinsic optical properties
    Andromachi P Michalopoulou
    University of California, Davis, USA
    Appl Opt 44:2024-32. 2005
    ..These two modalities provided different temporal behaviors, arguably arising from two different mechanisms providing direct correlation of intrinsic optical signatures to ischemic injury time...
  20. ncbi request reprint Using quantitative imaging techniques to assess vascularity in AIDS-related Kaposi's sarcoma
    Abby Vogel
    Laboratory of Integrative and Medical Biophysics, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA
    Conf Proc IEEE Eng Med Biol Soc 1:232-5. 2006
    ..These three techniques are objective, easy to perform, and appear to be very sensitive in assessing changes in the lesions upon administration of therapy...
  21. pmc Using noninvasive multispectral imaging to quantitatively assess tissue vasculature
    Abby Vogel
    National Institutes of Health, National Institute of Child Health and Human Development, Laboratory of Integrative and Medical Biophysics, Bethesda, Maryland 20892, USA
    J Biomed Opt 12:051604. 2007
    ....