-Optical trapping and manipulation of neutral particles using lasers; Ashkin http://www.pnas.org/content/94/10/4853.full

Photophoresis—Light induced motion of particles suspended in gas http://www.sciencedirect.com/science/article/pii/S0022407309000806

-Gradient Force on Dielectric Particles -Observation of a single-beam gradient force optical trap for dielectric particles; Ashkin https://www.osapublishing.org/ol/fulltext.cfm?uri=ol-11-5-288&id=8652

-fork hologram; transparent particles -Optical Particle Trapping with Higher-order Doughnut Beams Produced Using High Efficiency Computer Generated Holograms; Heckenberg http://www.tandfonline.com/doi/pdf/10.1080/09500349514550171

hi numerical aperture = greater force pulling toward source OPTICAL TRAPPING; Aleksandra Radenovic http://lben.epfl.ch/files/content/sites/lben/files/users/179705/Optical%20Trapping%20Handout.pdf

-™ and TEM trapping of gold, bronze and silver particles -Optical trapping of microscopic metal particles; Shunichi Sato https://www.osapublishing.org/ol/fulltext.cfm?uri=ol-19-22-1807&id=12676

-for absorbtive particles, LG03 modes (doughnuts) are stronger than TM00 modes -Optical trapping of absorbing particles; Rubinsztein-Dunlop http://arxiv.org/pdf/physics/0310022.pdf

-Photophoresis Fundamentals -Photophoresis-A Forgotten Force?? Horvath https://www.jstage.jst.go.jp/article/kona/31/0/31_2014009/_pdf

-UV laser trapping, particle shapes -Photophoretic trapping of airborne particles using ultraviolet illumination; Brandon Redding https://www.osapublishing.org/vjbo/fulltext.cfm?uri=oe-23-3-3630&id=311735

-spherical abberration trap -Robust trapping and manipulation of airborne particles with a bottle beam; Shvedov http://www.researchgate.net/profile/Cyril_Hnatovsky/publication/51658922_Robust_trapping_and_manipulation_of_airborne_particles_with_a_bottle_beam/links/09e41507e881907ac6000000.pdf

-nature of traps (mostly transparent); Appendix = hologram generation -Optical trapping and binding; Richard W Bowman http://iopscience.iop.org/0034-4885/76/2/026401/pdf/rpp13_2_026401.pdf -horizontal and vertical polarization -Effect of polarization on transport of particles in air by optical vortex beam; Shvedov http://iopscience.iop.org/2040-8986/14/5/055302/article

-creating optical wells -Advanced optical trapping by complex beam shaping; Mike Woerdemann http://onlinelibrary.wiley.com/doi/10.1002/lpor.201200058/pdf

-long distance movement of particles -Advanced optical trapping by complex beam shaping Mike Woerdemann http://phys.org/news/2010-09-scientists-meter-scale-distances-video.html

-bottle beams -Optical vault: reconfigurable bottle beam by conically refracted light; Shvedov http://arxiv.org/pdf/1409.1871.pdf

-theory of photophoretic forces in liquid -Theoretical analysis for photophoresis of a microscale hydrophobic particle in liquids; C. Y. Soong https://www.osapublishing.org/vjbo/fulltext.cfm?uri=oe-18-3-2168&id=195086

-Axially symmetric hollow beams using refractive conical lenses; M. de Angelis http://www.sciencedirect.com/science/article/pii/S0143816601001178

-long-distance tractor beam: azimuthal and radial polarization https://illiad.lib.byu.edu/ILLiad/illiad.dll?Action=10&Form=75&Value=1961532

-non-paraxial gaussian beam structure near focus -The structure of a nonparaxial Gaussian beam near the focus: II. Optical vortices; Shvedov http://link.springer.com/article/10.1134%2F1.1343551#page-1

-Optical vortex beams for trapping and transport of particles in air; Shvedov https://www.researchgate.net/publication/225193124_Optical_vortex_beams_for_trapping_and_transport_of_particles_in_air

-Trapping of macroparticles (diverging vortex beam) -Giant Optical Manipulation; Shvedov http://www.rsphysse.anu.edu.au/nonlinear/papers/pdf/PRL_2010_105_118103.pdf