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Title: Direct Laser Writing of Magneto-Photonic Sub-Microstructures for Prospective Applications in Biomedical Engineering

Journal Article · · Nanomaterials
DOI:https://doi.org/10.3390/nano7050105· OSTI ID:1423809
 [1];  [2];  [3];  [2];  [2];  [4];  [1]
  1. Univ. Paris-Saclay, Cachan (France). Laboratoire de Photonique Quantique et Moleculaire
  2. Hanoi National Univ. of Education, Cau Giay, Hanoi (Vietnam). Faculty of Physics
  3. Univ. Paris-Saclay, Cachan (France). Laboratoire de Photonique Quantique et Moleculaire; Vietnam Academy of Science and Technology, Hanoi (Vietnam). Inst. of Materials Science
  4. Univ. of South Florida, Tampa, FL (United States). Dept. of Physics

Here, we report on the fabrication of desired magneto-photonic devices by a low one-photon absorption (LOPA) direct laser writing (DLW) technique on a photocurable nanocomposite consisting of magnetite ( Fe3O4) nanoparticles and a commercial SU-8 photoresist. The magnetic nanocomposite was synthesized by mixing Fe3O4 nanoparticles with different kinds of SU-8 photoresists. We demonstrated that the degree of dispersion of Fe3O4 nanoparticles in the nanocomposite depended on the concentration of Fe3O4 nanoparticles, the viscosity of SU-8 resist, and the mixing time. By tuning these parameters, the most homogeneous magnetic nanocomposite was obtained with a concentration of about 2 wt % of Fe3O4 nanoparticles in SU-8 2005 photoresist for the mixing time of 20 days. The LOPA-based DLW technique was employed to fabricate on demand various magneto-photonic submicrometer structures, which are similar to those obtained without Fe3O4 nanoparticles. The magneto-photonic 2D and 3D structures with sizes as small as 150 nm were created. Finally, we demonstrated the strong magnetic field responses of the magneto-photonic nanostructures and their use as micro-actuators when immersed in a liquid solution. View Full-Text

Research Organization:
Univ. of South Florida, Tampa, FL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; French National Research Agency (ANR)
Grant/Contract Number:
FG02-07ER46438; 03.03-2015.78
OSTI ID:
1423809
Journal Information:
Nanomaterials, Vol. 7, Issue 12; ISSN 2079-4991
Publisher:
MDPICopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 16 works
Citation information provided by
Web of Science

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STED Direct Laser Writing of 45 nm Width Nanowire journal October 2019
Magnetically Tunable Organic Semiconductors with Superparamagnetic Nanoparticles preprint January 2019
Controllable movement of single-photon source in multifunctional magneto-photonic structures journal March 2020