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Institute for Ultrafast Spectroscopy and Lasers

Research

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The research at IUSL is centered on photonics, the science and technology of generating and harnessing light and other forms of radiant energy whose quantum unit is photon. Photonics encompasses the generation, propagation, deflection, amplification, manipulation, detection, and various applications of light. The advent of lasers in the 1960’s may be considered to be the precursor of the photonics era. Time-resolved optical spectroscopy, one of the major areas of photonics, has evolved from millisecond to femtosecond in resolution during the past 30 years. The research at IUSL has always been on the forefront of this evolution and many crucial steps in this evolution have occurred at IUSL. IUSL researchers take pride in being able to identify emerging photonic technology areas, and to be among the pioneers in developing those areas.

Thrust Areas for Technological Impact

  • Tunable solid-state lasers and amplifiers
  • Optical biomedical imaging and diagnostics
  • Optical mammography and tomography
  • Underwater imaging
  • Fluorescence imaging
  • Inverse image reconstruction
  • Photonic optical biopsy and pathology
  • Nonlinear optical microscopy
  • Bacteria detection
  • Laser tissue welding
  • Nanoscale photonic materials synthesis and characterization
  • Semiconductor physics and technology
  • High-efficiency solar cells
  • Multiple quantum well-based ultraviolet detectors
  • Nonlinear optics
  • Photon propagation in highly-scattering media
  • Ultrafast supercontinuum generation and application
  • Spin polarization, and
  • Terahertz radiation generation and its application to time-domain spectroscopy and imaging.

Research Projects

  1. Crystal Growth and Synthesis of Materials for NIR Laser Applications
  2. Tunable Solid-State Laser Development
  3. Porous Materials and Ceramics
  4. Optical Physics of Cr4+-Doped Novel Type Laser Media
  5. Hybrid Organic-Inorganic Nanoscale Optical Materials
  6. Nanoscale Microscopy and Imaging
  7. Development of Nanoscale Ultrafast Spectroscopic Probing Techniques
  8. Semiconductor Photodetectors and Emitters
  9. Optical Mammography
  10. Prostate Tumor Detection Using Spectral Polarization Imaging, Fingerprint Absorption and Tumor-Receptor-Targeted Contrast Agents
  11. Image Reconstruction of Objects in Turbid Media
  12. Optical Imaging with Independent Component Analysis
  13. Pulse Propagation and Optical Imaging Through Scattering Media
  14. Corrosion and Crack Detection Using NIR and Mid-IR Spectral Polarization Imaging, and Hybrid Heating-and-Cooling Thermal Imaging
  15. Time-Resolved Optical Polarization Imaging for Underwater Target Detection
  16. High Resolution Spectral Polarizing Dermatoscope
  17. Near Infrared Tunable Laser Tissue Welding
  18. Development of Micro-Endoscope
  19. Multi-wavelength Spectral Imaging Compact Photonics Explorer
  20. Development of CD-Ratiometer for Detection of Cervical Cancer
  21. Spectroscopic Detection of Bacteria, Spores and Viruses
  22. Ice Detection and Adhesion on Surfaces
  23. Spectral, Temporal and Coherence Properties of Supercontinuum
  24. Theory of Depolarization of Multiply Scattered Light in Turbid Media
  25. Infrared Terahertz Probing and Imaging Techniques
  26. THz Spectroscopy in Biological Molecules, Chemicals, and Semiconductors
  27. Orbital Angular Momentum and Spin of Light
  28. Laser Raman Scattering. Fluorescence and Absorption Spectroscopy of Biomedical Materials
  29. Tile Wide Field of View Microscopy