Nanoparticle-sensor based on optical gradient force
We present a detection scheme for nanoscale particles based on the optical gradient force and torque near a tightly focused laser beam. The focus affects the path of nanoparticles passing by and a quadrant detector records the particle trajectory. A feedback system continuously adjusts the laser pow...
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| creator | Ignatovich, F. Hartschuh, A. Novotny, L. |
| description | We present a detection scheme for nanoscale particles based on the optical gradient force and torque near a tightly focused laser beam. The focus affects the path of nanoparticles passing by and a quadrant detector records the particle trajectory. A feedback system continuously adjusts the laser power thereby preventing the particles from being trapped. Particle size and shape can be assessed by evaluating the time-trace of the quadrant detector signal. |
| doi_str_mv | 10.1109/QELS.2003.238434 |
| format | Conference Proceeding |
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The focus affects the path of nanoparticles passing by and a quadrant detector records the particle trajectory. A feedback system continuously adjusts the laser power thereby preventing the particles from being trapped. Particle size and shape can be assessed by evaluating the time-trace of the quadrant detector signal.</description><identifier>ISBN: 1557527490</identifier><identifier>ISBN: 9781557527493</identifier><identifier>DOI: 10.1109/QELS.2003.238434</identifier><language>eng</language><publisher>IEEE</publisher><subject>Detectors ; Laser beams ; Laser feedback ; Nanoparticles ; Optical feedback ; Optical recording ; Particle beams ; Power lasers ; Shape ; Torque</subject><ispartof>Postconference Digest Quantum Electronics and Laser Science, 2003. 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QELS</title><addtitle>QELS</addtitle><description>We present a detection scheme for nanoscale particles based on the optical gradient force and torque near a tightly focused laser beam. The focus affects the path of nanoparticles passing by and a quadrant detector records the particle trajectory. A feedback system continuously adjusts the laser power thereby preventing the particles from being trapped. Particle size and shape can be assessed by evaluating the time-trace of the quadrant detector signal.</description><subject>Detectors</subject><subject>Laser beams</subject><subject>Laser feedback</subject><subject>Nanoparticles</subject><subject>Optical feedback</subject><subject>Optical recording</subject><subject>Particle beams</subject><subject>Power lasers</subject><subject>Shape</subject><subject>Torque</subject><isbn>1557527490</isbn><isbn>9781557527493</isbn><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>2003</creationdate><recordtype>conference_proceeding</recordtype><sourceid>6IE</sourceid><sourceid>RIE</sourceid><recordid>eNotjs1KxDAURgMiqOPsBTd5gdabvzZZyjDqQFFk3A93khuJ1KYk3fj2FvTbHDiLw8fYnYBWCHAP7_vh2EoA1UpltdIX7EYY0xvZawdXbFvrF6xTzjhjr5l6xSnPWJbkR2oqTTUXfsZKgeeJ53n1OPLPgiHRtPCYi6dbdhlxrLT954Ydn_Yfu5dmeHs-7B6HJjlYGkRtjfOAwupIsvMdmXgG2WOM1IXYmRgsoYSA2iB0gZzWIirtrVTSqg27_6smIjrNJX1j-TkJ2Ru33v8FYyVC7g</recordid><startdate>2003</startdate><enddate>2003</enddate><creator>Ignatovich, F.</creator><creator>Hartschuh, A.</creator><creator>Novotny, L.</creator><general>IEEE</general><scope>6IE</scope><scope>6IH</scope><scope>CBEJK</scope><scope>RIE</scope><scope>RIO</scope></search><sort><creationdate>2003</creationdate><title>Nanoparticle-sensor based on optical gradient force</title><author>Ignatovich, F. ; Hartschuh, A. ; Novotny, L.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-i90t-aa4859c0a184fe26c6e5fb027affe6df65fd8ea20da45a06de9441f34c823283</frbrgroupid><rsrctype>conference_proceedings</rsrctype><prefilter>conference_proceedings</prefilter><language>eng</language><creationdate>2003</creationdate><topic>Detectors</topic><topic>Laser beams</topic><topic>Laser feedback</topic><topic>Nanoparticles</topic><topic>Optical feedback</topic><topic>Optical recording</topic><topic>Particle beams</topic><topic>Power lasers</topic><topic>Shape</topic><topic>Torque</topic><toplevel>online_resources</toplevel><creatorcontrib>Ignatovich, F.</creatorcontrib><creatorcontrib>Hartschuh, A.</creatorcontrib><creatorcontrib>Novotny, L.</creatorcontrib><collection>IEEE Electronic Library (IEL) Conference Proceedings</collection><collection>IEEE Proceedings Order Plan (POP) 1998-present by volume</collection><collection>IEEE Xplore All Conference Proceedings</collection><collection>IEEE Electronic Library (IEL)</collection><collection>IEEE Proceedings Order Plans (POP) 1998-present</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Ignatovich, F.</au><au>Hartschuh, A.</au><au>Novotny, L.</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>Nanoparticle-sensor based on optical gradient force</atitle><btitle>Postconference Digest Quantum Electronics and Laser Science, 2003. QELS</btitle><stitle>QELS</stitle><date>2003</date><risdate>2003</risdate><spage>2 pp.</spage><pages>2 pp.-</pages><isbn>1557527490</isbn><isbn>9781557527493</isbn><abstract>We present a detection scheme for nanoscale particles based on the optical gradient force and torque near a tightly focused laser beam. The focus affects the path of nanoparticles passing by and a quadrant detector records the particle trajectory. A feedback system continuously adjusts the laser power thereby preventing the particles from being trapped. Particle size and shape can be assessed by evaluating the time-trace of the quadrant detector signal.</abstract><pub>IEEE</pub><doi>10.1109/QELS.2003.238434</doi></addata></record> |
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| identifier | ISBN: 1557527490 |
| ispartof | Postconference Digest Quantum Electronics and Laser Science, 2003. QELS, 2003, p.2 pp. |
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| language | eng |
| recordid | cdi_ieee_primary_1275900 |
| source | IEEE Electronic Library (IEL) Conference Proceedings |
| subjects | Detectors Laser beams Laser feedback Nanoparticles Optical feedback Optical recording Particle beams Power lasers Shape Torque |
| title | Nanoparticle-sensor based on optical gradient force |
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