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  "path": "/nanotechnology-news3/newsid=69213.php",
  "publishedAt": "2026-04-22T00:15:16.000Z",
  "site": "https://www.nanowerk.com",
  "textContent": "Researchers developed wet-etching-assisted single-pulse nanolithography to fabricate nanoholes in sapphire with depth-to-diameter ratios exceeding 50,000:1 for photonic applications.",
  "title": "Femtosecond laser technique produces record aspect ratio nanoholes in sapphire"
}