نتایج جستجو برای: talbot effect
تعداد نتایج: 1642315 فیلتر نتایج به سال:
Brad Spellberg and George Talbot, for the Infectious Diseases Society of America, American College of Chest Physicians, American Thoracic Society, and Society of Critical Care Medicine Division of General Internal Medicine, Los Angeles Biomedical Research Institute at Harbor–University of California Los Angeles (UCLA) Medical Center, and David Geffen School of Medicine at UCLA, Los Angeles, and...
We report a simple, novel subdiffraction method, i.e. diffraction interference induced superfocusing in second-harmonic (SH) Talbot effect, to achieve focusing size of less than λSH/4 (or λpump/8) without involving evanescent waves or subwavelength apertures. By tailoring point spread functions with Fresnel diffraction interference, we observe periodic SH subdiffracted spots over a hundred of m...
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