Vortex-pair beam based optical tweezer system

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11842825
APP PUB NO 20220215980A1
SERIAL NO

17422572

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

The present disclosure discloses a vortex-pair beam based optical tweezer system, including a laser device (1), a collimating beam expanding system, a spatial light modulator (6), a confocal beam shrinking system, a sample table (12), and an observation unit arranged according to a light path. The spatial light modulator (6) continuously loads different vortex-pair beam phase diagrams in real time, and manipulates and rotates a particle in real time by using a single vortex-pair beam. The optical tweezer system can realize precise regulation, control, and positioning of two spherical particles at any positions in a plane, and any controllable rotation operation of a rod-shaped particle in the plane, which makes application objects of the optical tweezer system richer, and effectively solves the problem that the rod-shaped particle is difficult to be controlled by the existing optical tweezer system.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
ZHEJIANG UNIVERSITYNO 38 ZHEDA ROAD XIHU DISTRICT HANGZHOU CITY ZHEJIANG 310027

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gao, Binjie Zhejiang, CN 2 0
Wang, Ligang Zhejiang, CN 51 528
Wen, Jisen Zhejiang, CN 1 0

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Jun 12, 2027
7.5 Year Payment $3600.00 $1800.00 $900.00 Jun 12, 2031
11.5 Year Payment $7400.00 $3700.00 $1850.00 Jun 12, 2035
Fee Large entity fee small entity fee micro entity fee
Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00