发明名称 |
OPTICAL TRAP USING A FOCUSED HOLLOW-BEAM FOR TRAPPING AND HOLDING BOTH ABSORBING AND NON-ABSORBING AIRBORNE PARTICLES |
摘要 |
Embodiments of the present invention are directed to systems and methods for trapping and holding airborne particles. In the various embodiments, an optical trap is provided which uses a focused hollow-beam for trapping and holding both absorbing and non-absorbing airborne particles. The optical trap comprises: a trapping region where a particle can be present to be trapped; a light source for generating a coherent beam of light; optics for forming a hollow beam having a ring geometry from the coherent beam of light; and a focusing element for focusing the hollow beam to a point in the trapping region. In this arrangement, the particle is trapped at or near the focal point of the focused hollow beam. |
申请公布号 |
US2016260513(A1) |
申请公布日期 |
2016.09.08 |
申请号 |
US201514638536 |
申请日期 |
2015.03.04 |
申请人 |
U.S. Army Research Laboratory ATTN: RDRL-LOC-I |
发明人 |
Pan Yongle;Redding Brandon F. |
分类号 |
G21K1/00;H05H3/04 |
主分类号 |
G21K1/00 |
代理机构 |
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代理人 |
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主权项 |
1. An optical trap for trapping and holding both absorbing and non-absorbing airborne particles comprising:
a trapping region where a particle can be present to be trapped; a light source for generating a coherent beam of light; optics for forming a hollow beam having a ring geometry from the coherent beam of light; and a focusing element for focusing the hollow beam to a point in the trapping region, wherein the particle is trapped at or near the focal point of the focused hollow beam. |
地址 |
Adelphi MD US |