TY - GEN

T1 - Laser-induced periodic structures-assisted surface plasmon resonance refractive index sensor

AU - Бронников, Кирилл Алексеевич

AU - Мункуева, Жибзэма Этигэловна

AU - Terentyev, Vadim S

AU - Симонов, Виктор Александрович

AU - Микерин, Сергей Львович

AU - Бабин, Сергей Алексеевич

AU - Kuchmizhak, A.

AU - Достовалов, Александр Владимирович

N1 - The work was supported by the Russian Science Foundation grant (No. 21-72-20162). In the research, we used the equipment of the following Multiple-Access Centres (MAC): MAC of the Far Eastern Federal University (FEFU), MAC “High-resolution spectroscopy of gases and condensed matters” at IAE SB RAS, MAC of the Novosibirsk State University (NSU).

PY - 2024

Y1 - 2024

N2 - Laser-induced periodic surface structures (LIPSS) offer a simple, single-step technique for creating periodic patterns on solids in an ambient air. Combined with metals like gold or silver, LIPSS enhances grating-assisted refractive index (RI) sensors using surface plasmon resonance (SPR). This study analyzes an SPR sensor in the Kretschmann configuration with a periodically modulated silver layer. The modulation is created by LIPSS formed on a titanium-coated glass prism using femtosecond laser pulses, followed by a silver coating. Reflection spectra for wavelengths λ = 600-1700 nm were calculated for various angles of incidence and RI values (1.33-1.4). Unlike a flat sensor with a single resonance, the LIPSS-based sensor shows multiple resonances (λ = 1000-1700 nm) due to modes on inner and outer interfaces. LIPSS reduces resonance spectral width by an order of magnitude, but also reduces sensitivity similarly, weakly affecting the Figure of Merit. The LIPSS-assisted sensor was also tested experimentally.

AB - Laser-induced periodic surface structures (LIPSS) offer a simple, single-step technique for creating periodic patterns on solids in an ambient air. Combined with metals like gold or silver, LIPSS enhances grating-assisted refractive index (RI) sensors using surface plasmon resonance (SPR). This study analyzes an SPR sensor in the Kretschmann configuration with a periodically modulated silver layer. The modulation is created by LIPSS formed on a titanium-coated glass prism using femtosecond laser pulses, followed by a silver coating. Reflection spectra for wavelengths λ = 600-1700 nm were calculated for various angles of incidence and RI values (1.33-1.4). Unlike a flat sensor with a single resonance, the LIPSS-based sensor shows multiple resonances (λ = 1000-1700 nm) due to modes on inner and outer interfaces. LIPSS reduces resonance spectral width by an order of magnitude, but also reduces sensitivity similarly, weakly affecting the Figure of Merit. The LIPSS-assisted sensor was also tested experimentally.

KW - cylindrical microresonator

KW - effective radius variation

KW - optical fiber

KW - quality factor

KW - silicon

KW - silicon nitride

KW - snap

KW - sputter deposition

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85214843872&origin=inward&txGid=65531e3b9cf354f0efacf58ffa2fbd68

U2 - 10.1117/12.3036456

DO - 10.1117/12.3036456

M3 - Conference contribution

VL - 13245

T3 - Proceedings of SPIE - The International Society for Optical Engineering

BT - Proceedings of SPIE - The International Society for Optical Engineering

PB - The International Society for Optical Engineering

T2 - Plasmonics VIII 2024

Y2 - 12 October 2024 through 14 October 2024

ER -