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Laser writing of waveguides in porous glass for small molecules detection

Wednesday (24.06.2020)
12:11 - 12:14 Room 1
Part of:
- Poster Processing of Functional Texturing on Micro-fibers by Laser Induced Periodic Surface Structures 1 Prof. Masaki Yamaguchi
- Poster 3D microfabrication of thermoset polymer PDMS using laser-induced bubble 1 Prof. Yasutaka Hanada
- Poster *student* Laser-Peening with solid state medium as plasma confinement layer 1 Yuki Sugimoto
- Poster *student* Numerical Simulation and Test Experiments of Selective Laser Thermoregulation for Accelerated Degradation Test of SiC/SiC CMC 1 Hayato Koshiji
- Poster *student* Laser peening of sprayed ceramics film 1 Yuya Yasuyoshi
- Poster *student* Influence of thickness of plasma confinement layer on laser peening using near infrared laser 1 Hikaru Hirata
- Poster *student* Green femtosecond laser direct writing using reduction of glyoxylic acid Co/Ni complexes 1 Hikaru Nakatani
- Poster Ultrafast pulse GHz burst mode laser ablation for efficient surface microprocessing 1 Ph.D. Francesc Caballero Lucas
- Poster *student* Development of hybrid laser system with blue diode laser and single mode fiber laser for welding of pure copper 1 Shumpei Fujio
- Poster *student* High stability of frequency and robustness of noise-like pulse fiber laser 1 Hitoshi Nakano
- Poster *student* Broadband pulsed fiber laser for suppression of stimulated Brillouin scattering 1 Tetsuya Yamazaki
- Poster Aligned growth of ZnO nanowires on diamond by nanoparticle-assisted pulsed laser deposition 1 Dr. Daisuke Nakamura
- Poster *student* Spectrometer-based Ultrashort Pulsed Laser Selective Microstructuring of Ni/NiCr Multi-layer Coatings 1 Chao He
- Poster *student* Femto- and nanosecond laser surface modification of stainless steel 1 Dipl.-Volkswirt Paulina Dzienny
- Poster Laser writing of waveguides in porous glass for small molecules detection 1 Dr. Roman Zakoldaev
- Poster *student* Homogeneous intensity within the Rayleigh length and enhanced depth of focus for Gaussian beams 1 Christian Bischoff
Session Chair

Session PS: Poster Session 01
Belongs to:
Topic PS: Poster Session

The detection of small dose of nanoscale objects has always been essential for the sensor industry. An elementary component in photonics such as a waveguide suggests a compact light propagation in the bulk of optical materials. Laser direct writing (LDW) brings a novel waveguides sensor application in commercial glasses. The concept of a waveguide fabrication with a cladding sensitive to the environment and a core with optical properties close to a fused silica seems relevant. The correct choice of a substrate with a combination of LDW allows to implement the concept and design novel photonic opto-fluidic sensors for high precision concentration measurement.

We propose LDW inside of a nanoporous glass to fabricate waveguides sensor, which is sensitive to the objects captured by the nanoporous framework. Experimental and theoretical studies revealed three types of a waveguides structure and quantify the refractive index contrast and insertion losses. The waveguides are found to have an optical response for small molecules such as an ethanol penetrating to the cladding though the nanoporous framework.

The study is funded by a grant Russian Science Foundation (project № 19-79-10208)

Dr. Roman Zakoldaev
ITMO University
Additional Authors:
  • Zhong Lijing
    ITMO University
  • Dr. Maksim Sergeev
    ITMO University
  • Andrey Ostanin
    ITMO University
  • Prof. Dr. Olga Andreeva
    ITMO University


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