BROWSE

Related Scientist

Choi, Wonshik's photo.

Choi, Wonshik
분자 분광학 및 동력학 연구단
more info

ITEM VIEW & DOWNLOAD

Magnetic nanoparticles embedded in microlasers for controlled transport in different sensing media

Cited 0 time in webofscience Cited 0 time in scopus
72 Viewed 0 Downloaded
Title
Magnetic nanoparticles embedded in microlasers for controlled transport in different sensing media
Author(s)
Mai, Hanh Hong; Hoang, Van Huy; Luu, Manh Quynh; Nguyen, Trong Tam; Nguyen, Hoang Nam; Tien, Do Xuan; Khoi, Giang Manh; Nguyen, Toan T.; Choi, Youngwoon; Wonshik Choi; Ta, Van Duong
Publication Date
2022-10
Journal
JOURNAL OF PHYSICS D-APPLIED PHYSICS, v.55, no.40
Publisher
IOP Publishing Ltd
Abstract
In recent years, whispering gallery mode microlasers have attracted tremendous interest in sensing due to their ultra-high sensitivity at atomic levels. However, due to the non-magnetic properties, it is difficult to locate the microlasers at hard-to-reach positions, thus, limiting their sensing potential in many in-vitro and in-vivo applications. In this work, we report magnetic microlasers fabricated by encapsulating Ni0.2Zn0.8Fe2O4 magnetic nanoparticles (MNPs) within their cavity made of bovine serum albumin. The presence of MNPs allows the transportable actuation of the magnetic microlasers while maintaining lasing emission characteristics. Microlasers with various concentrations of MNPs are investigated to identify the optimum concentration that can balance a good magnetization, a low lasing threshold, and a high quality (Q) factor. These magnetic microlasers can be employed for sensing applications where sensors need to be navigated through different sensing media. As a proof of concept, we observed a clear shift of lasing wavelength of a magnetic microlaser while dragging it through different adjacent media by magnetic navigation. This result demonstrates the potential applications of magnetic microlasers for future biological and chemical applications.
URI
https://pr.ibs.re.kr/handle/8788114/12363
DOI
10.1088/1361-6463/ac835f
ISSN
0022-3727
Appears in Collections:
Center for Molecular Spectroscopy and Dynamics(분자 분광학 및 동력학 연구단) > 1. Journal Papers (저널논문)
Files in This Item:
There are no files associated with this item.

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse