Tunable size selectivity and nanoparticle immobilization on a photonic crystal optical trap
We harness residual thermal effects in a low-absorptivity system to manipulate parallel optical trapping of particles on the nanoscale. A photonic crystal is used to generate a 2D array of optical traps. We show that the size selectivity of the trap can be tuned by adding a non-ionic surfactant to t...
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| Veröffentlicht in: | Optics letters 2018-11, Vol.43 (21), p.5399-5402 |
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| container_end_page | 5402 |
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| container_issue | 21 |
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| container_title | Optics letters |
| container_volume | 43 |
| creator | Krishnan, Aravind Wu, Shao-Hua Povinelli, Michelle |
| description | We harness residual thermal effects in a low-absorptivity system to manipulate parallel optical trapping of particles on the nanoscale. A photonic crystal is used to generate a 2D array of optical traps. We show that the size selectivity of the trap can be tuned by adding a non-ionic surfactant to the solution, altering the thermophoretic effect that delivers nanoparticles to trapping sites. We further show that particles can be permanently immobilized on the photonic crystal via photopolymerization of the trapping medium. |
| doi_str_mv | 10.1364/ol.43.005399 |
| format | Article |
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| fulltext | fulltext |
| identifier | ISSN: 0146-9592 |
| ispartof | Optics letters, 2018-11, Vol.43 (21), p.5399-5402 |
| issn | 0146-9592 1539-4794 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_2127950467 |
| source | Optica Publishing Group Journals |
| subjects | Absorptivity Nanoparticles Optical trapping Optical traps Photonic crystals Photopolymerization Quantum theory Selectivity Temperature effects |
| title | Tunable size selectivity and nanoparticle immobilization on a photonic crystal optical trap |
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