{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,20]],"date-time":"2025-10-20T10:13:11Z","timestamp":1760955191703,"version":"3.41.2"},"reference-count":18,"publisher":"AIP Publishing","issue":"11","content-domain":{"domain":["pubs.aip.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2009,11,1]]},"abstract":"<jats:p>Diversified research interests in scanning laser microscopy nowadays require broadband capability of the optical system. Although an all-mirror-based optical design with a suitable metallic coating is appropriate for broad-spectrum applications from ultraviolet to terahertz, most researchers prefer lens-based scanning systems despite the drawbacks of a limited spectral range, ghost reflection, and chromatic aberration. One of the main concerns is that the geometrical aberration induced by off-axis incidence on spherical mirrors significantly deteriorates image resolution. Here, we demonstrate a novel geometrical design of a spherical-mirror-based scanning system in which off-axis aberrations, both astigmatism and coma, are compensated to reach diffraction-limited performance. We have numerically simulated and experimentally verified that this scanning system meets the Marech\u00e0l condition and provides high Strehl ratio within a 3\u00b0\u00d73\u00b0 scanning area. Moreover, we demonstrate second-harmonic-generation imaging from starch with our new design. A greatly improved resolution compared to the conventional mirror-based system is confirmed. This scanning system will be ideal for high-resolution linear\/nonlinear laser scanning microscopy, ophthalmoscopic applications, and precision fabrications.<\/jats:p>","DOI":"10.1063\/1.3254021","type":"journal-article","created":{"date-parts":[[2009,11,10]],"date-time":"2009-11-10T21:03:12Z","timestamp":1257886992000},"update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":7,"title":["A diffraction-limited scanning system providing broad spectral range for laser scanning microscopy"],"prefix":"10.1063","volume":"80","author":[{"given":"Jiun-Yann","family":"Yu","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chien-Sheng","family":"Liao","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zong-Yan","family":"Zhuo","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chen-Han","family":"Huang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hsiang-Chen","family":"Chui","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shi-Wei","family":"Chu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"317","published-online":{"date-parts":[[2009,11,10]]},"reference":[{"key":"2023070601344015000_c1","doi-asserted-by":"publisher","first-page":"73","DOI":"10.1126\/science.2321027","volume":"248","year":"1990","journal-title":"Science"},{"key":"2023070601344015000_c2","doi-asserted-by":"publisher","first-page":"3341","DOI":"10.1016\/S0006-3495(99)77165-1","volume":"77","year":"1999","journal-title":"Biophys. 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