Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Femtosecond-laser-fabricated periodic tapered structures on a silicon substrate for terahertz antireflection

Not Accessible

Your library or personal account may give you access

Abstract

In this research, terahertz (THz) antireflective structures tapered with several profiles (linear, exponential, Klopfenstein) were modeled for high-resistivity silicon and theoretically evaluated using a high-frequency electromagnetic field simulation (HFSS). Their antireflective characteristics are greatly affected by the profiles. One-dimensional periodic tapered THz antireflective structures with different profiles were also fabricated on high-resistivity silicon using femtosecond laser processing. Their antireflective characteristics were experimentally evaluated by standard THz time-domain spectroscopy and modeled by HFSS for reference. The experimental results are in good agreement with the simulations, which showed that the Fresnel reflection reduces to almost zero over a band broader than 1 THz.

© 2019 Optical Society of America

Full Article  |  PDF Article
More Like This
Terahertz broadband anti-reflection moth-eye structures fabricated by femtosecond laser processing

Haruyuki Sakurai, Natsuki Nemoto, Kuniaki Konishi, Ryota Takaku, Yuki Sakurai, Nobuhiko Katayama, Tomotake Matsumura, Junji Yumoto, and Makoto Kuwata-Gonokami
OSA Continuum 2(9) 2764-2772 (2019)

Laser-generated broadband antireflection structures for freeform silicon lenses at terahertz frequencies

A. Brahm, S. Döring, A. Wilms, G. Notni, S. Nolte, and A. Tünnermann
Appl. Opt. 53(13) 2886-2891 (2014)

Broadband terahertz antireflective microstructures on quartz crystal surface by CO2 laser micro-processing

Du Wang, Yaguo Li, Chuanchao Zhang, Wei Liao, Zeyu Li, Qinghua Zhang, and Qiao Xu
Opt. Express 27(13) 18351-18362 (2019)

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 Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica 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 Optica member, or as an authorized user of your institution.

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

Figures (13)

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

Contact your librarian or system administrator
or
Login to access Optica 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 Optica member, or as an authorized user of your institution.

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

Equations (14)

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

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

Metrics

Select as filters


Select Topics Cancel
© Copyright 2022 | Optica Publishing Group. All Rights Reserved