Recent Publications

G. Dyankov, T.A.Eftimov, N. Malinowski, E. Belina, H. Kisov, P. Mikulic, W.J. Bock, "A highly efficient biosensor based on MAPLE deposited hemoglobin on LPGs around phase matching turning point", Optics and Laser Technology, Vol. 123, Art. No. 105907, (2020).

T.A. Eftimov, Koffi, N.G., Lesage, F.J., Mikulic, P., Bock, W.J., "Thermal gradients sensing using LPGs with a spatially varying effective refractive index difference", Optics and Laser Technology, Vol. 122, Art. No. 105836, (2020).

M.Koffi, T. Eftimov, F. Lesage, P. Mikulic, W.J. Bock, “Measurement of thermal gradients using long period gratings at different levels of ambient refractive indices”, Journ. of Lightwave Technology, 37(18),8718604, pp. 4674-4679, (2019).

T.A.Eftimov, M. Janik, W.J.Bock, "Microcavity In-Line Mach-Zehnder Interferometers Fabricated in Single-Mode Fibers and Fiber Tapers for Visible (VIS) and Near-Infrared (NIR) Operation", Journal of Lightwave Technology, Vol. 37, Issue 13, Art. No. 8712529, pp. 3351-3356, (2019).

M. Janik, T. Eftimov, M.Koba, M.Smietana, W.J.Bock, “Tailoring Properties of Microcavity In-line Mach-Zehnder Interferometer by the Microcavity Enlargement using Femtosecond Laser”, Journ. of Lightwave Technology, 37(18), 8674552, pp.4501-4506, (2019).

A Celebanska, Y Chiniforooshan, M Janik, P Mikulic, B. Sellamuthu, R. Walsh, J. Perreault, W. J Bock, "Label-free cocaine aptasensor based on a long-period fiber grating", Optics Letters, Vol. 44, Issue 10, pp. 2482-2485, (2019).

A. Celebanska, Y. Chiniforooshan, M. Janik, P. Mikulic, B. Sellamuthu, J. Perreault, and W. J. Bock, "Bioinspired Carbohydrate-Decorated Long-Period Fiber Grating for Label-Free Bacteria Detection", IEEE Sensors Journ., Vol. 19, No. 24, pp. 11965-11971, (2019).

R. Zawisza, T. Eftimov, P. Mikulic, W. J. Bock, L. R. Jaroszewicz, “Ambient refractive-index measurement with simultaneous temperature monitoring based on a dual-resonance long-period grating inside a fiber loop mirror structure’ Sensors, 18(7):2370, (2018).

R. Zawisza, T. Eftimov, P. Mikulic, Y. Chinifooroshan, A. Celebanska, W.J. Bock, L.R. Jaroszewicz, “Dual-resonance long-period grating in fiber loop mirror structure for liquid refractive index measurement”, Opto-electronics Review,Vol.26, Issue 1, pp. 24-28, (2018).

R. Zawisza, L. R Jaroszewicz, A.Celebanska, P. Mikulic, W. J. Bock, Dual-Resonance Long Period Grating in Fiber Loop Mirror Based Platform for Cheap Biomedical Sample Detection with High Resolution, Biomedical Journal of Scientific & Technical Research, Vol. 10, Issue 3, Pages 1-4, (2018).

M. Janik, M.Koba, A. Celebanska, W. J. Bock, M. Smietana, "Sensing properties of micro-cavity in-line Mach-Zehnderinterferometer enhanced by reactive ion etching", Optics & Laser Technology, Vol. 103, pp. 260-266, (2018).

M. Janik, M. Koba, A.Celebanska, W. J. Bock and M. Smietana, "Live E. coli bacteria label-free sensing using a microcavity in-line Mach-Zehnder interferometer", Scientific Reports, 8:17176, (2018).

M. Janik, A. K. Mysliwiec, M. Koba, A. Celebanska, W. J. Bock, and M. Smietana, "Sensitivity Pattern of Femtosecond Laser Micromachined and Plasma-Processed In-Fiber Mach-Zehnder Interferometers", as Applied to Small-Scale Refractive Index Sensing, IEEE Sensors Journ, Vol. 17, No. 11, pp. 3316-3322, (2017).

M.Smietana, M. Janik, M. Koba, and W. J. Bock, "Transition between bulk and surface refractive index sensitivity of micro-cavity in-line Mach-Zehnder interferometer induced by thin film deposition", Optics Express Vol. 25, Issue 21, pp. 26118-26123, (2017).

Y. Chiniforooshan, A. Celebanska, M. Janik, P. Mikulic, F. Haddad, J. Perreault, W. J. Bock, "Double-resonance long period fiber grating for detection of E. coli in trace concentration by choosing a proper bacteriophage", 25th OFS, Proc SPIE Vol.10323, 10234X, (2017).

M. Janika, M. Koba, P. Mikulic, W.J. Bock, M.Smietana, "Combined long-period grating and micro-cavity in-line Mach-Zehnder interferometer for refractive index sensing", 25th OFS, Proc SPIE, Vol.10323, 10238R, (2017).

M. Janika, Marcin Kobab, Wojtek J. Bock, Mateusz Smietana,"Tuning refractive index sensing properties of micro-cavity in-line Mach-Zehnder interferometer with plasma etching", 25th OFS, Proc SPIE Vol.10323, 10238, (2017).

A. K. Debowska, M. Koba, M. Janik, W. J. Bock, M. Smietana, Increased sensitivity of femtosecond laser micro-machined in-fiber Mach-Zehnder interferometer for small-scale refractive index sensing, Proceedings Volume 9916, Sixth European Workshop on Optical Fibre Sensors; 99160Q, Sixth European Workshop on Optical Fibre Sensors, EWOFS'2016, Limerick, Ireland, (2016).

A. K. Debowska, M. Dominik, M. Koba, M. Janik, W. Bock, and M. Smietana "Effect of oxygen plasma modification on refractive index sensing with micro-cavity in-line Mach-Zehnder interferometer", Proc. SPIE 10175, Electron Technology Conference, 101750N 22 December, (2016).

M. Smietana, M. Koba, P. Mikulic, W. J Bock, "Towards refractive index sensitivity of longperiod gratings at level of tens of μm per refractive index unit: fiber cladding etching and nano-coating deposition", Optics Express, vol. 24, no. 11 (2016).

M. Smietana, M. Koba, P. Mikulic, W. J Bock, "Combined Plasma-Based Fiber Etching and Diamond-Like Carbon Nano-overlay Deposition for Enhancing Sensitivity of Long-Period Gratings", Journal of Lightwave Technology, vol. 99 (2016).

E. Brzozowska, M. Koba, M. Smietana, S. Górska, M. Janik, A. Gamian, W. J. Bock, "Label-free Gram-negative bacteria detection using bacteriophage-adhesin-coated long-period gratings", Biomedical Optics Express, vol. 7, no. 3, 829-840 (2016).

A. Czapla, W. J. Bock, T. R. Wolinski, P. Mikulic, E. Nowinowski-Kruszelnicki, R. Dabrowski, "Improving the electric field sensing capabilities of the long-period fiber grating coated with a liquid crystal layer", Optics Express, vol. 24, no. 5, 5662-5673 (2016).

M. Smietana, M. Dominik, M. Mysliwiec, N. Kwietniewski, P. Mikulic, B.S. Witkowski, W. J. Bock, " Properties of silicon nitride thin overlays deposited on optical fibers — Effect of fiber suspension in radio frequency plasma-enhanced chemical vapor deposition reactor", Thin Solid Films , vol. 603, 8-13 (2016).

M. Smietana, M. Koba, P. Mikulic, W. J. Bock, "Enhancing sensitivity of long-period gratings by combined fiber etching and diamond-like carbon nano-overlay deposition ", Proc. of SPIE Vol. 9634 963456-1-963456-4 (2015).

M. Koba, M. Smietana, E. Brzozowska, S. Gorska, P. Mikulic, A. Cusano, W. J. Bock, "Detection specificity studies of bacteriophage adhesin-coated long-period grating-based biosensor", Proc. of SPIE Vol. 9634 963426-1-963426-4 (2015).

M. Koba, M. Smietana, E. Brzozowska, S. Gorska, M. Janik, P. Mikulic, A. Cusano, W. J Bock, "Bacteriophage Adhesin-Coated Long-Period Grating-Based Sensor: Bacteria Detection Specificity", Journal of Lightwave Technology (2016).

R. Bogdanowicz, M. Sobaszek, J. R., M. Gnyba, M. Ficek, L. Golunski, W. J. Bock, M. Smietana, K. Darowicki, "Improved surface coverage of an optical fibre with nanocrystalline diamond by the application of dip-coating seeding", Diamond & Related Materials, vol. 55, 52-63 (2015).

Y. Chiniforooshan, J. Ma, W. J. Bock, "Corrugated Fiber Grating for Detection of Lead Ions in Water", Journal of Lightwave Technology, vol. 33, no. 12, 2549-2553 (2015).

M. Smietana, M. Koba, E. Brzozowska, K. Krogulski, J. Nakonieczny, L. Wachnicki, P. Mikulic, M. Godlewski, W. J. Bock, "Label-free sensitivity of long-period gratings enhanced by atomic layer deposited TiO2 nanooverlays", Optics Express, vol. 23, no. 7, 8441-8453 (2015).

M. Koba, M. Smietana, E. Brzozowska, S. Gorska, P. Mikulic, W. J. Bock, "Reusable Bacteriophage Adhesin-Coated Long-Period Grating Sensor for Bacterial Lipopolysaccharide Recognition ", Journal of Lightwave Technology, vol. 33, no. 12, 2518-2523 (2015).

E. Brzozowska, M. Smietana, M. Koba, S. Górska, K. Pawlik, A. Gamian, W. J. Bock, "Recognition of bacterial lipopolysaccharide using bacteriophage-adhesin-coated long-period gratings", Biosensors and Bioelectronics, vol. 67, 93-99 (2015).

S. K. Saha, K. R. Ghosh, W. Hao, Z. Y. Wang, J. Ma, Y. Chiniforooshan, and W. J. Bock, "Highly sensitive and selective fluorescence turn-on detection of lead ion in water using fluorene-based compound and polymer", Journal of Materials Chemistry A 2, 5024-5033 (2014).

M. Smietana, M. Koba, P. Mikulic, W. J. Bock, "Measurements of reactive ion etching process effect using long-period fiber gratings", Optics Express, vol. 22, no. 5, 5986-5994, 2014.

M. Smietana, M. Koba, P. Mikulic, W. J. Bock, "Tuning properties of long-period gratings by plasma post-processing of their diamond-like carbon nano-overlays," Measurement Science and Technology, vol. 25 (2014).

M. Smietana, M. Dudek, M. Koba, B. Michalak, "Influence of diamond-like carbon overlay properties on refractive index sensitivity of nano-coated optical fibers", Physica Status Solidi A, vol. 210, no. 10, 2100–2105, 2013.

S. M. Tripathi, W. Bock, A.Kumar and P. Mikulic (2013), “Temperature insensitive high-precision refractive-index sensor using two concatenated dual-resonance long-period gratings”, Optics Letters, vol. 38, 10,1666-1668.

R.Garg, S.Tripathi, K.Thyagarajan, W.J.Bock (2013), “Long period fiber grating based temperature-compensated high performance sensor for bio-chemical sensing applications”, Sensors and Actuators B, vol. 176, 1121 - 1127.

S.Tripathi, A.Kumar, M.Kumar, W.Bock (2012), “Temperature-insensitive fiber-optic devices using multimode interference effect”, Optics Letters, vol. 37, 22. 4570-4572.

M.Smietana, D.Brabant, W.J.Bock, P.Mikulic, T.Eftimov (2012), “Refractive Index Sensing with Inline Core-Cladding Intermodal Interferometer Based on Silicon Nitride Nano-Coated Photonic Crystal Fiber”, IEEE/OSA J.Lightwave Technol. (USA), vol. 30, 8, 1185-1189.

Saurabh Mani Tripathi, Wojtek J. Bock, Predrag Mikulic, Raja Chinnappan, Andy Ng, Mona Tolba and Mohammed Zourob, (2012), “Long Period Grating Based Biosensor for High-Precision Detection of Escherichia Coli Bacteria", Biosensors and Bioelectronics, vol. 35, 308 - 312.

J. Ma, Y. Chiniforooshan, W. H. Hao, W. J. Bock, and Z. Y. Wang, "Easily fabricated, robust fiber-optic probe for weak fluorescence detection: modeling and initial experimental evaluation", Optics Express 20, 4805-4811 (2012).

J. Ma, Y. Chiniforooshan, J. H. Chen, W. J. Bock, W. H. Hao, and Z. Y. Wang, "Recapturing lost evanescent power by tuning end face total internal reflection capable tunneling modes at a roughened fiber end face", Optics Letters 36, 3581-3583 (2011).

J.Ma, A.Kos, W.J. Bock, X.Li, H.Nguyen, Z.Y.Wang and A.Cusano (2012), “Lab-on-a-fiber Device for Trace Vapor TNT Explosive Detection: Comprehensive Performance Evaluation”, IEEE/OSA J.Lightwave Technol. (USA), vol. 30, 8. 1127-1133.

Y.Chiniforooshan, J.Ma, W.J.Bock (2012), “Evanescent-wave Fiber-optic Sensor: On Power Transfer from Core-cladding Interface to Fiber End-face”, IEEE/OSA J.Lightwave Technol. (USA), vol. 30, 8. 1123-1128.

M.Smietana, W.J.Bock, P.Mikulic, J.Chen (2012), “Tuned Pressure Sensitivity of Dual Resonant Long-Period Gratings Written in Boron Co-doped Optical Fiber”, IEEE/OSA J.Lightwave Technol. (USA), vol. 30, 8. 1080-1084.

W.J.Bock, T.Eftimov, M.Smietana, P.Mikulic(2011), “Efficient Distributed Moisture-Ingress Sensing Using Diamond-like Carbon-nanocoated Long-Period Gratings”, Opt.Comm., (NL), vol. 284, 4470-4472.

M.Smietana, W.J.Bock, P.Mikulic, A.Ng, R.Chinnappan, M.Zourob (2011), “Detection of Bacteria using Bacteriophages as Recognition Elements Immobilized on Long-Period Fiber Gratings", Optics Express, (USA), vol. 19, 9, 7971-7978.

H.Chen, J.Ma, J.Chen, W.J.Bock (2011), “Significant Retrieval of Lost Evanescent Power by Tuning Modes Close-to-Cutoff with a Gel-Coated Taper”, Opt.Lett. (USA), vol. 36, 2092-2094.

J.Ma, Y.Chiniforooshan, H.Chen, W.J.Bock, A.Cusano (2011), “Rerouting End-face TIR Capable Rays to Significantly Increase Evanescent Wave Signal Power”, Ch.Opt.Lett., (China), vol. 9, 4, 040603-1-3.

H.Chen, J.Ma, J.Chen, W.J.Bock, A.Cusano, (2011), “Covering a fiber taper with a refractive index matching gel residue: a significant increase of evanescent-wave signal collection efficiency”, Ch.Opt.Lett., (China), vol. 9, 6, DOI:10.3788/COL201109.s10701.

M.Smietana, W.J.Bock, J.Szmidt (2011), “Evolution of Optical Properties with Deposition Time of Silicon Nitride and Diamond-like Carbon Films deposited by RF-PECVDmethod”, Thin Solid Films, (NL), vol. 519, 19, 6339-6343.

J.Ma, A.Kos, W.J.Bock, X.Li, H.Nguyen, Z.Y.Wang, A.Cusano (2011), “TNT Vapor Detection Based on Lab-on-a-Fiber: Achieving a Milimeter-Scale Sensing Element on Fiber”, IEEE Sens.Jour., (USA), DOI 10.1109/JSEN.2011.2147779.

A.Iadicicco, D.Paladino, S.Campopiano, W.J.Bock, A.Cutolo, A.Cusano, (2011), “Evanescent Wave Sensor Based on Permanently Bent Single Mode Optical Fiber”, Sensors & Act. B, Chemical, (NL) vol. 155, 2, 903-908.

M.Smietana, W.J.Bock, P.Mikulic, J.Chen (2011), “Increasing Sensitivity of the Arc-Induced Long-Period Gratings – Pushing the Fabrication Technique Towards its Limits”, Meas.Sci.Technol. (UK), vol. 22, 1, 015201 (6pp).

A. Czapla, T. Wolinski, R. Dabrowski, E. Nowinowski-Kruszelnicki and W. Bock (2010), “An electrically tunable filter based on a long-period fiber grating with a thin liquid crystal layer”, Photonics Letters of Poland, Vol. 2 (3), 116-118.

R. Miletiev, R. Arnaudov, W. Bock, T. Eftimov, X. Bao (2010), “Performance evaluation of a few- and multimode fiber optic perimeter sensor with selective mode excitation”, Photonics Letters of Poland, Vol. 2 (1), 43-45.

T.Eftimov, W.J.Bock, P.Mikulic, J.Chen, K.Nikolova (2010), "Single-Wavelength Polarization-Sensitive Interrogation of an LPG Sensor", Meas.Sci.Technol. (UK), vol. 21, 115301 (5pp).

M.Smietana, W.J.Bock, J.Szmidt, J.Grabarczyk (2010), "Substrate Effect on the Optical Properties and Thickness of Diamond-Like Carbon Films Deposited by the RF PACVD Method", DRM - Diamond and Related Materials, (NL), vol. 19, 1461-1465.

A.Czapla, W.J.Bock, P.Mikulic, T.R.Wolinski (2010) "Towards Tuning of Thermal Sensitivity of the Long Period Fiber Gratings Using a Liquid Crystal Layer" Bull.Pol.Acad,Sci. (PL) vol. 58, 4, 1-6.

M.Smietana, W.J.Bock, P.Mikulic (2010), "Comparative Study of Long-Period Gratings Written in a Boron Co-doped Fiber by an Electric Arc and UV Irradiation", Meas.Sci.Technol. (UK), vol. 21, 025309 (8pp).

Z.Wang, Z.Y.Wang, J.Ma, W.J.Bock, D.Ma (2010), "Effect of Film Thickness, Blending and Undercoating on Optical Detection of Nitroaromatics using Fluorescent Polymer Films", Polymer, vol. 51, 842-847.

M.Smietana, W.J.Bock, J.Chen, P.Mikulic (2010), "Highly Sensitive Pressure Sensor Based on Long-Period Gratings Written in Boron Co-Doped Optical Fiber", Meas.Sci.Technol. (UK), vol. 21, 9, 094026 (5pp).

A.Czapla,T.R.Wolinski, E.Nowinowski-Kruszelnicki, W.J.Bock, (2010), "A Novel Electrically-Tunable Long-Period Fiber Grating with Thin LC Layer", Act.Phys.Pol. A, (Pl) vol. 118, 6, 1104-7.

L-Y.Shao, A.Laroche, M.Smietana, P.Mikulic, W.J.Bock, J.Albert (2010), "Highly Sensitive Bend Sensor with Hybrid Long Period and Tilted Fiber Bragg Grating", Optics Comm. (NL) vol. 283, 2690-4.

R.Miletiev, R.Arnaudov, W.J.Bock, T.Eftimov, X.Bao (2010), "Performance Evaluation of a Few- and Multimode Fiber Optic Sensor with Selective Mode Excitation", Phot.Lett.Pol, (PL) vol. 2, 43-5.

M.Smietana, W.J.Bock, J.Szmidt, G.R.Pickrell (2010), "Nanocoating Enhanced Optical Fiber Sensors, in Advances in Materials Science for Environmental and Nuclear Technology, (USA) Volume 222 (eds K. Fox, E. Hoffman, N. Manjooran and G. Pickrell), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470930991.ch26, 275-286.

W.J. Bock, T.A. Eftimov, P. Mikulic, and J. Chen, "An Inline Core-Cladding Intermodal Interferometer Using a Photonic Crystal Fiber," Journal of Lightwave Technology, Volume 27, Issue 17, 3933-3939 (2009).

T.A. Eftimov, W.J. Bock, J. Chen, and P.Mikulic, "Müller-Stokes Analysis of Long Period Gratings. Part I: Uniformly Birefringent LPGs," Journal of Lightwave Technology, Volume 27, Issue 17, 3752-3758 (2009).

T. A. Eftimov, W.J. Bock, P. Mikulic, and J. Chen, "Müller-Stokes Analysis of Long Period Gratings. Part II: Randomly Birefringent LPGs," Journal of Lightwave Technology, Volume 27, Issue 17, 3759-3764 (2009).

J. Ma, W.J. Bock, and A. Cusano, "Insights into tunnelling rays: outperforming guided rays in fiber-optic sensing device," Opt. Express 17, 7630-7639 (2009).

A. Czapla, W. J. Bock, T. Wolinski, and P. Mikulic, "High-Efficiency Thermal Tuning of a Long-Period Fiber Grating Using a Liquid Crystal Layer", Photonics Letters of Poland, Vol. 1 (2), 100-102 (2009).

J. Ma and W.J. Bock, "Addressing Factors Affecting Fluorescent Signal Collection of a Multimode Photonic Crystal Fiber Fluorometer", Copyright © 2008 IEEE. Reprinted from IEEE Transactions on Instrumentation and Measurement, Volume 57, Issue 12, Dec. 2008 Page(s):2813 - 2818.

J. Ma and W.J. Bock, "Dramatic performance enhancement of evanescent-wave multimode fiberfluorometer using non-Lambertian light diffuser", Opt. Express 15, 16457-16470 (2007).

W.J. Bock, J. Chen, P. Mikulic, and T. Eftimov, "A Novel Fiber-Optic Tapered Long-Period Grating Sensor for Pressure Monitoring", Copyright © 2007 IEEE. Reprinted from IEEE Transactions on Instrumentation and Measurement, Volume 56, Issue 4, Aug. 2007 Page(s):1176 - 1180.

P.J. Bock, S. Majumdar, and W.J. Bock, "Internet-Based Distributed Data Acquisition System for Fiber-Optic Sensors", Copyright © 2007 IEEE. Reprinted from IEEE Transactions on Instrumentation and Measurement, Volume 56, Issue 1, Feb. 2007 Page(s):32 - 38.

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