Optoacoustic Effect in a Hybrid Multilayered Membrane Deposited on a Hollow-Core Microstructured Optical Waveguide

Nikita Kaydanov*, Stanislav Perevoschikov, Sergei V. German, Stepan A. Romanov, Timur Ermatov, Anton A. Kozyrev, Julijana Cvjetinovic, Andrey Machnev, Roman E. Noskov, Sergey S. Kosolobov, Julia S. Skibina, Albert G. Nasibulin, Christian Zakian, Pavlos G. Lagoudakis, Dmitry A. Gorin*

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Modern imaging technologies, including optoacoustic endoscopy, are based on the optoacoustic effect. Much promise is offered by the all-optical fiber-based approach, because fiber has a miniature cross section, is highly sensitive, and can be used in a variety of imaging and therapeutic techniques. We developed a probe based on a hollow-core microstructured optical waveguide (HC-MOW) with a hybrid nanostructured membrane. The membrane consisted of a free-standing single-walled carbon nanotube film and a Bragg reflector, which can be used as a source and a detector of ultrasound. Membrane vibrations were excited with an IR laser pulse and were read out by recording the intensity of the reflected visible CW laser light. We explained the nature of the intensity modulation of the reflected light and supported our explanation with numerical simulations of the membrane's vibration eigenfrequencies and thermal distribution. The membrane vibrations were also observed with raster-scanning optoacoustic mesoscopy. The transmittance of the HC-MOW between 400 nm and 6.5 μm and that of the hybrid nanostructured membrane in the NIR range enable potential optoacoustic sensing in the IR fingerprint region of biomolecules. This permits the optoacoustic probe to be used for medical endoscopic purposes.

Original languageEnglish
Pages (from-to)3346–3356
Number of pages11
JournalACS Photonics
Volume8
Issue number11
Early online date3 Nov 2021
DOIs
Publication statusPublished - 17 Nov 2021
MoE publication typeA1 Journal article-refereed

Keywords

  • all-optical probe
  • hollow-core microstructured optical waveguide
  • hybrid multilayered membrane
  • laser-induced ultrasonics
  • optoacoustic effect
  • vibrational eigenfrequency

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