Micro-ball and micro-bottle resonators for relative humidity sensing

U. U.M. Ali; B. A. Ahmad; M. A.M. Johari; Z. Jusoh; S. W. Harun; M. Yasin

Micro-ball and micro-bottle resonators for relative humidity sensing

U. U.M. Ali, B. A. Ahmad, M. A.M. Johari, Z. Jusoh, S. W. Harun, M. Yasin

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

We compare the performance of two whispering gallery mode optical resonators; optical micro-ball (MBaR) and micro-bottle resonators (MBR) as a relative humidity (RH) sensor. The MBaR and MBR are fabricated via the so-called "soften-and-compress" method to create a ball or bulge structure. The MBaR and MBR is then optically excited by using a 8μm optical microfiber and was found to have a Q-factor of >105. The MBaR and MBR was then employed as a humidity sensor with a RH range of between 40% to 100% and the performance is compared for both resonator. The MBR RH sensor was found to have a sensitivity of 0.2973 dB/%, linearity >90% and is superior to the MBaR microfiber in all measured parameters. The MBR RH sensor was also found to have good repeatability and stability compare to MBaR.

Original language	English
Pages (from-to)	567-571
Number of pages	5
Journal	Optoelectronics and Advanced Materials, Rapid Communications
Volume	13
Issue number	11-12
Publication status	Published - 1 Nov 2019

Keywords

Humidity sensor
Optical resonator
Whispering gallery mode

Cite this

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title = "Micro-ball and micro-bottle resonators for relative humidity sensing",

abstract = "We compare the performance of two whispering gallery mode optical resonators; optical micro-ball (MBaR) and micro-bottle resonators (MBR) as a relative humidity (RH) sensor. The MBaR and MBR are fabricated via the so-called {"}soften-and-compress{"} method to create a ball or bulge structure. The MBaR and MBR is then optically excited by using a 8μm optical microfiber and was found to have a Q-factor of >105. The MBaR and MBR was then employed as a humidity sensor with a RH range of between 40% to 100% and the performance is compared for both resonator. The MBR RH sensor was found to have a sensitivity of 0.2973 dB/%, linearity >90% and is superior to the MBaR microfiber in all measured parameters. The MBR RH sensor was also found to have good repeatability and stability compare to MBaR.",

keywords = "Humidity sensor, Optical resonator, Whispering gallery mode",

author = "Ali, {U. U.M.} and Ahmad, {B. A.} and Johari, {M. A.M.} and Z. Jusoh and Harun, {S. W.} and M. Yasin",

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pages = "567--571",

journal = "Optoelectronics and Advanced Materials, Rapid Communications",

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TY - JOUR

T1 - Micro-ball and micro-bottle resonators for relative humidity sensing

AU - Ali, U. U.M.

AU - Ahmad, B. A.

AU - Johari, M. A.M.

AU - Jusoh, Z.

AU - Harun, S. W.

AU - Yasin, M.

PY - 2019/11/1

Y1 - 2019/11/1

N2 - We compare the performance of two whispering gallery mode optical resonators; optical micro-ball (MBaR) and micro-bottle resonators (MBR) as a relative humidity (RH) sensor. The MBaR and MBR are fabricated via the so-called "soften-and-compress" method to create a ball or bulge structure. The MBaR and MBR is then optically excited by using a 8μm optical microfiber and was found to have a Q-factor of >105. The MBaR and MBR was then employed as a humidity sensor with a RH range of between 40% to 100% and the performance is compared for both resonator. The MBR RH sensor was found to have a sensitivity of 0.2973 dB/%, linearity >90% and is superior to the MBaR microfiber in all measured parameters. The MBR RH sensor was also found to have good repeatability and stability compare to MBaR.

AB - We compare the performance of two whispering gallery mode optical resonators; optical micro-ball (MBaR) and micro-bottle resonators (MBR) as a relative humidity (RH) sensor. The MBaR and MBR are fabricated via the so-called "soften-and-compress" method to create a ball or bulge structure. The MBaR and MBR is then optically excited by using a 8μm optical microfiber and was found to have a Q-factor of >105. The MBaR and MBR was then employed as a humidity sensor with a RH range of between 40% to 100% and the performance is compared for both resonator. The MBR RH sensor was found to have a sensitivity of 0.2973 dB/%, linearity >90% and is superior to the MBaR microfiber in all measured parameters. The MBR RH sensor was also found to have good repeatability and stability compare to MBaR.

KW - Humidity sensor

KW - Optical resonator

KW - Whispering gallery mode

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M3 - Article

AN - SCOPUS:85079731790

SN - 1842-6573

VL - 13

SP - 567

EP - 571

JO - Optoelectronics and Advanced Materials, Rapid Communications

JF - Optoelectronics and Advanced Materials, Rapid Communications

IS - 11-12

ER -

Micro-ball and micro-bottle resonators for relative humidity sensing

Abstract

Keywords

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