Analog time-reversed ultrasonically encoded light focusing inside scattering media with a 33,000× optical power gain
Advanced Search
Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.
 
 
i


Analog time-reversed ultrasonically encoded light focusing inside scattering media with a 33,000× optical power gain
Filetype[PDF-739.46 KB]


Details:
  • Alternative Title:
    Sci Rep
  • Personal Author:
  • Description:
    Recent breakthrough in wavefront engineering shows great promises in controlling light propagation inside scattering media. At present, the digital approaches enjoy high gain, while their speeds are slow because of high data throughputs. In contrast, the analog approaches are intrinsically fast but suffer from poor efficiencies and small gains. Further improvements in both speed and gain are necessary to advance the existing technologies toward real-world applications. Here, we report analog time-reversal of acousto-optically tagged photons with a flux amplification of over 33,000 times (45 dB) at a target location inside scattering media. Such a substantial power gain enhancement is achieved when the temporal width of the time-reversed photon packet is squeezed below the carrier-recombination-limited hologram decay time in a photorefractive crystal. Despite a focusing energy gain below unity, the unprecedented power gain is expected to enable new optical imaging, sensing, manipulation and treatment applications.
  • Subject:
  • Pubmed ID:
    25753905
  • Pubmed Central ID:
    PMC4354154
  • Document Type:
    Journal Article
  • Funding:
    DP1 EB016986/DP/NCCDPHP CDC HHS/United States
  • Collection(s):
    CDC Public Access
  • Main Document Checksum:
  • File Type:
No Related Documents.

You May Also Like:

  1. Personal Author:
    Sarkar, Subrata ; Shankaran, Seetha ; ...
    Published Date:
    Feb 02 2018
    Source:
    J Pediatr. 195:59-65.e3.
    Description:
    ObjectiveTo determine the outcome of preterm infants whose cystic periventricular leukomalacia “disappeared” on serial screening cranial imaging s...
    File Type:
    Filetype[PDF - 515.45 KB]
    File Type:
    Filetype[PDF - 515.45 KB]
  2. Personal Author:
    Koman, Patricia D. ; Mancuso, Peter ;
    Published Date:
    Jun 15 2017
    Source:
    Chem Res Toxicol. 30(7):1384-1395.
    Description:
    From 1999-2014, obesity prevalence increased among adults and youth. Obese individuals may be uniquely susceptible to the proinflammatory effects of o...
    File Type:
    Filetype[PDF - 512.70 KB]
    File Type:
    Filetype[PDF - 512.70 KB]
  3. Personal Author:
    Graham, S ; Lewis, B ; ...
    Published Date:
    Dec 2015
    Source:
    J Transp Health. 2(4):602-609.
    Description:
    We examined lack of private vehicle access and 30 minutes or longer public transportation travel time to mammography facilities for women 40 years of ...
    File Type:
    Filetype[PDF - 706.23 KB]
    File Type:
    Filetype[PDF - 706.23 KB]
  4. Personal Author:
    Sloan, Chantel D. ; Andrew, Angeline S. ; ...
    Published Date:
    Jan 1 2012
    Source:
    Toxicol Environ Chem. 94(3).
    Description:
    Indoor and outdoor air pollution is known to contribute to increased lung cancer incidence. This study is the first to address the contribution of hom...
    File Type:
    Filetype[PDF - 1.15 MB]
    File Type:
    Filetype[PDF - 1.15 MB]
  5. Personal Author:
    ROSSNER, ALAN ; DOTSON, G. SCOTT ;
    Published Date:
    Jun 2012
    Source:
    Synergist (Akron). 23:30-31.
    File Type:
    Filetype[PDF - 36.38 KB]
    File Type:
    Filetype[PDF - 36.38 KB]