Effects of edge inclination angles on whispering-gallery modes in printable wedge microdisk lasers

Cong Chen, Lei Wan, Hengky Chandrahalim, Jian Zhou, Hui Zhang, Sangha Cho, Ting Mei, Hiroaki Yoshioka, Huiping Tian, Naoya Nishimura, Xudong Fan, L. Jay Guo, Yuji Oki

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The ink-jet technique was developed to print the wedge polymer microdisk lasers. The characterization of these lasers was implemented using a free-space optics measurement setup. It was found that disks of larger edge inclination angles have a larger free spectral range (FSR) and a lower resonance wavelength difference between the fundamental transverse electric (TE) and transverse magnetic (TM) whispering-gallery modes (WGMs). This behavior was also confirmed with simulations based on the modified Oxborrow’s model with perfectly matched layers (PMLs), which was adopted to accurately calculate the eigenfrequencies, electric field distributions, and quality parameters of modes in the axisymmetric microdisk resonators. Combined with the nearly equivalent quality factor (Q-factor) and finesse factor (F-factor) variations, the correlations between the TE and left adjacent TM modes were theoretically demonstrated. When the edge inclination angle is varied, the distinguishable mode distribution facilitates the precise estimation of a resonance wavelength shift. Therefore, the flexible and efficient nature of wedge polymer microdisk lasers extends their potential applications in precision sensing technology.

Original languageEnglish
Pages (from-to)233-241
Number of pages9
JournalOptics Express
Volume26
Issue number1
DOIs
Publication statusPublished - Jan 8 2018

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whispering gallery modes
wedges
inclination
lasers
perfectly matched layers
polymers
inks
wavelengths
Q factors
resonators
optics
electric fields
shift
simulation

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

Cite this

Effects of edge inclination angles on whispering-gallery modes in printable wedge microdisk lasers. / Chen, Cong; Wan, Lei; Chandrahalim, Hengky; Zhou, Jian; Zhang, Hui; Cho, Sangha; Mei, Ting; Yoshioka, Hiroaki; Tian, Huiping; Nishimura, Naoya; Fan, Xudong; Jay Guo, L.; Oki, Yuji.

In: Optics Express, Vol. 26, No. 1, 08.01.2018, p. 233-241.

Research output: Contribution to journalArticle

Chen, C, Wan, L, Chandrahalim, H, Zhou, J, Zhang, H, Cho, S, Mei, T, Yoshioka, H, Tian, H, Nishimura, N, Fan, X, Jay Guo, L & Oki, Y 2018, 'Effects of edge inclination angles on whispering-gallery modes in printable wedge microdisk lasers', Optics Express, vol. 26, no. 1, pp. 233-241. https://doi.org/10.1364/OE.26.000233
Chen, Cong ; Wan, Lei ; Chandrahalim, Hengky ; Zhou, Jian ; Zhang, Hui ; Cho, Sangha ; Mei, Ting ; Yoshioka, Hiroaki ; Tian, Huiping ; Nishimura, Naoya ; Fan, Xudong ; Jay Guo, L. ; Oki, Yuji. / Effects of edge inclination angles on whispering-gallery modes in printable wedge microdisk lasers. In: Optics Express. 2018 ; Vol. 26, No. 1. pp. 233-241.
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