Abstract

For enhancing the micromirror properties like tilting angle and stability during actuation, Fe-based metallic glass (MG) was applied for torsion bar material. A micromirror with mirror-plate diameter of 900μm and torsion bar dimensions length 250μm, width 30μm and thickness 2.5μm was chosen for the tilting angle tests, which were performed by permanent magnets and electromagnet setup. An extremely large tilting angle of over 270° was obtained from an activation test by permanent magnet that has approximately 0.2T of magnetic strength. A large mechanical tilting angle of over 70° was obtained by applying approximately 1.1mT to the mirror when 93mA was applied to solenoid setup. The large-tilting angle of the micromirror is due to the torsion bar, which was fabricated with Fe-based MG thin film that has large elastic strain limit, fracture toughness, and excellent magnetic property.

© 2011 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Electromagnetic biaxial microscanner with mechanical amplification at resonance

Ah Ran Cho, Aleum Han, Suna Ju, Haesoo Jeong, Jae-Hyoung Park, Inhoi Kim, Jong-Uk Bu, and Chang-Hyeon Ji
Opt. Express 23(13) 16792-16802 (2015)

3D In Vivo optical coherence tomography based on a low-voltage, large-scan-range 2D MEMS mirror

Jingjing Sun, Shuguang Guo, Lei Wu, Lin Liu, Se-Woon Choe, Brian S. Sorg, and Huikai Xie
Opt. Express 18(12) 12065-12075 (2010)

Electromagnetic biaxial vector scanner using radial magnetic field

Aleum Han, Ah Ran Cho, Suna Ju, Si-Hong Ahn, Jong-Uk Bu, and Chang-Hyeon Ji
Opt. Express 24(14) 15813-15821 (2016)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription