Dr. Jani Tervo Profile

Dr. Jani Tervo

Optics Architect

SPIE Involvement:

Author | Editor

Publications (23)

Proceedings Article | 28 April 2017 Presentation

TiO2-coated single and multi-wavelength shifted Bragg grating in SOI platform as add-drop filter (Conference Presentation)

Somnath Paul, Ismo Vartiainen, Matthieu Roussey, Toni Saastamoinen, Jani Tervo, Seppo Honkanen, Markku Kuittinen

Proceedings Volume 10108, 101080U (2017) https://doi.org/10.1117/12.2251807

KEYWORDS: Titanium dioxide, Silicon photonics, Waveguides, Fiber Bragg gratings, Silicon, Optical filters, Atomic layer deposition, Reflection, Coating, Signal attenuation

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Proceedings Article | 3 May 2016 Paper

Analysis of all-optically tunable functionalities in subwavelength periodic structures by the Fourier modal method

Subhajit Bej, Jani Tervo, Jorge Francés, Yuri Svirko, Jari Turunen

Proceedings Volume 9889, 988906 (2016) https://doi.org/10.1117/12.2227871

KEYWORDS: Titanium dioxide, Nanowires, Diffraction gratings, Mathematical modeling, Wave propagation, Waveguides, Kerr effect, Birefringence, Nonlinear optics, Refractive index, Silica

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Proceedings Article | 27 April 2016 Paper

Efficient split field FDTD analysis of third-order nonlinear materials in two-dimensionally periodic media

Jorge Francés, Sergio Bleda, Subhajit Bej, Jani Tervo, Víctor Navarro-Fuster, Sandra Fenoll, Francisco J. Martínez-Gaurdiola, Cristian Neipp

Proceedings Volume 9889, 988908 (2016) https://doi.org/10.1117/12.2227542

KEYWORDS: Binary data, Numerical analysis, Nonlinear filtering, Waveguide modes, Finite-difference time-domain method, Waveguides, Binary data, Numerical analysis, Polarization, Titanium dioxide, Computer simulations, Electromagnetism, Radio propagation

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Proceedings Article | 27 April 2016 Paper

Optical bistability in a silicon nitride waveguide grating

Subhajit Bej, Janne Laukkanen, Jani Tervo, Yuri Svirko, Jari Turunen

Proceedings Volume 9894, 98940C (2016) https://doi.org/10.1117/12.2227860

KEYWORDS: Waveguides, Bistability, Free space optics, Nonlinear metamaterials, Refractive index, Quartz, Chromium, Nonlinear optics, Diffraction gratings, Resonators

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SPIE Journal Paper | 10 December 2015

Graphene-enhanced waveguide-resonance gratings

Mahesh Kumar, Jani Tervo, Tommi Kaplas, Yuri Svirko

JNP, Vol. 10, Issue 01, 012518, (December 2015) https://doi.org/10.1117/12.10.1117/1.JNP.10.012518

KEYWORDS: Graphene, Absorption, Waveguides, Sensors, Dielectric polarization, Diffraction gratings, Absorbance, Refractive index, Optical properties, Dielectrics

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Proceedings Article | 23 September 2015 Paper

Beam shaping of supercontinuum pulses

Manisha Singh, Hanna Lajunen, Jani Tervo, Jari Turunen

Proceedings Volume 9626, 962633 (2015) https://doi.org/10.1117/12.2191264

KEYWORDS: Beam shaping, Optical components, Spectral coherence, Picosecond phenomena, Optical design, Ultrafast phenomena, Sensors, Terahertz radiation, Optical simulations, Temporal coherence

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Proceedings Article | 27 February 2015 Paper

Cross-slot waveguide Bragg grating

Matthieu Roussey, Petri Stenberg, Arijit Bera, Somnath Paul, Jani Tervo, Markku Kuittinen, Seppo Honkanen

Proceedings Volume 9371, 93711T (2015) https://doi.org/10.1117/12.2077418

KEYWORDS: Waveguides, Polarization, Fiber Bragg gratings, Silicon, Refractive index, Photonics, Photonic crystals, Finite-difference time-domain method, Silica, Nanowires

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Proceedings Article | 1 May 2014 Paper

The influence of a light pipe on the coherence properties in laser projectors

Stijn Roelandt, Jani Tervo, Youri Meuret, Guy Verschaffelt, Hugo Thienpont

Proceedings Volume 9131, 91310J (2014) https://doi.org/10.1117/12.2051140

KEYWORDS: Electroluminescent displays, Spatial coherence, Interferometers, Projection systems, Light, Light wave propagation, Wavefronts, Free space, Charge-coupled devices, Computer simulations

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Proceedings Article | 1 May 2014 Paper

Analysis of a polarization-independent nonlinear cross-slot waveguide with Fourier Modal Method (FMM)

Somnath Paul, Jani Tervo, Seppo Honakanen

Proceedings Volume 9133, 913313 (2014) https://doi.org/10.1117/12.2048994

KEYWORDS: Waveguides, Refractive index, Silicon, Amorphous silicon, Kerr effect, Nonlinear optics, Telecommunications, Polarization, Silicon photonics, Titanium dioxide

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Proceedings Article | 1 May 2014 Paper

Fourier modal method for crossed gratings with Kerr-type nonlinearity

Subhajit Bej, Jani Tervo, Jari Turunen, Yuri Svirko

Proceedings Volume 9131, 913116 (2014) https://doi.org/10.1117/12.2051744

KEYWORDS: Refractive index, Diffraction gratings, Waveguides, Quartz, Nonlinear optics, Maxwell's equations, Polarization, Information operations, Radio propagation, Silicon

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Proceedings Article | 7 March 2014 Paper

Efficient grating simulation for general incident beam

Site Zhang, Frank Wyrowski, Jani Tervo

Proceedings Volume 8977, 897710 (2014) https://doi.org/10.1117/12.2039961

KEYWORDS: Diffraction, Diffraction gratings, Optical simulations, Aluminum, Superposition, Polarization, Chemical elements, Radio propagation, Electromagnetism, Solids

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Proceedings Article | 5 May 2012 Paper

Elementary field method for broad area laser diodes

Henri Partanen, Jani Tervo, Jari Turunen

Proceedings Volume 8429, 84290H (2012) https://doi.org/10.1117/12.924513

KEYWORDS: Resonators, Near field, Broad area laser diodes, Semiconductor lasers, Superposition, Waveguides, Optical simulations, Numerical simulations, Laser resonators, Light sources

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Proceedings Article | 3 November 2011 Paper

Partial coherence and polarization in electromagnetic interference

Tero Setälä, Jani Tervo, Ari Friberg

Proceedings Volume 8011, 801166 (2011) https://doi.org/10.1117/12.902482

KEYWORDS: Polarization, Electromagnetism, Modulation, Coherence (optics), Electromagnetic interference, Interferometers, Visibility, Radio propagation, Spectral coherence, Applied physics

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Proceedings Article | 5 October 2011 Paper

Electromagnetic Hanbury Brown-Twiss phenomenon

Timo Hassinen, Jani Tervo, Tero Setälä, Ari Friberg

Proceedings Volume 8171, 817105 (2011) https://doi.org/10.1117/12.897119

KEYWORDS: Electromagnetism, Thermal effects, Sensors, Polarization, Visibility, Quantum optics, Interferometers, Applied physics, Photons, Mirrors

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Proceedings Article | 5 October 2011 Paper

Efficient use of grating theories with partially coherent illumination

Jani Tervo, Heikki Hyvärinen, Toni Saastamoinen, Ismo Vartiainen, Jari Turunen

Proceedings Volume 8171, 81710F (2011) https://doi.org/10.1117/12.896805

KEYWORDS: Diffraction gratings, Diffraction, Imaging systems, Correlation function, Physics, Light sources, 3D modeling, Wave propagation, Data modeling, Matrices

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Proceedings Article | 27 April 2006 Paper

AFM benchmark for the profile characterisation of subwavelength diffractive elements within the EC Network of Excellence on Micro-Optics (NEMO)

N. Destouches, H. Herzig, W. Nakagawa, H. Ottevaere, J. Pietarinen, S. Reynaud, J. Tervo, S. Tonchev, J. Turunen, J. Van Erps, M. Kujawinska

Proceedings Volume 6188, 61881K (2006) https://doi.org/10.1117/12.668466

KEYWORDS: Atomic force microscopy, Diffraction gratings, Scanning electron microscopy, Calibration, Optical testing, Micro optics, Metrology, Inverse optics, Scanners, Etching

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Proceedings Article | 20 January 2006 Paper

Broadband diffractive elements based on polarization gratings

Hanna Lajunen, Jani Tervo, Jari Turnnen

Proceedings Volume 6027, 602741 (2006) https://doi.org/10.1117/12.668392

KEYWORDS: Polarization, Diffraction, Diffraction gratings, Chemical elements, Optical design, Beam splitters, Optical components, Modulation, Dielectric polarization, Targeting Task Performance metric

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Proceedings Article | 21 October 2004 Paper

Intensity fluctuations and the degree of polarization in Gaussian random electromagnetic fields

Tero Setala, K. Lindfors, Matti Kaivola, Jani Tervo, Ari Friberg

Proceedings Volume 5622, (2004) https://doi.org/10.1117/12.591611

KEYWORDS: Polarization, Electromagnetism, Electromagnetic radiation, Near field optics, Interferometry, Near field, Coherence (optics), Laser optics, Physics, Mathematics

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Proceedings Article | 1 September 2004 Paper

Electromagnetic degree of coherence in space-time and space-frequency domains

Tero Setala, Jani Tervo, Ari Friberg

Proceedings Volume 5456, (2004) https://doi.org/10.1117/12.551934

KEYWORDS: Electromagnetism, Visibility, Near field optics, Coherence (optics), Near field, Physics, Electromagnetic theory, Statistical analysis, Signal analyzers, Analog electronics

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Proceedings Article | 1 September 2004 Paper

Broadband diffractive elements with high efficiency

Hanna Lajunen, Jani Tervo, Jari Turunen

Proceedings Volume 5456, (2004) https://doi.org/10.1117/12.549791

KEYWORDS: Dielectric polarization, Diffraction gratings, Diffraction, Optical design, Refractive index, Modulation, Wave plates, Dielectrics, Birefringence, Interfaces

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Proceedings Article | 1 September 2004 Paper

Degree of coherence and electromagnetic resonators

Jani Tervo, Toni Saastamoinen, Jari Turunen, Tero Setala, Ari Friberg

Proceedings Volume 5456, (2004) https://doi.org/10.1117/12.549783

KEYWORDS: Resonators, Electromagnetism, Mirrors, Laser resonators, Polarization, Optical components, Visibility, Radio propagation, Lithium, Physics

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Proceedings Article | 31 December 2003 Paper

Polarization modulation by subwavelength-structured space-variant dielectric interfaces

Jani Tervo, Jari Turunen

Proceedings Volume 5182, (2003) https://doi.org/10.1117/12.509495

KEYWORDS: Diffraction, Polarization, Modulation, Electromagnetism, Dielectric polarization, Jones vectors, Beam splitters, Dielectrics, Interfaces, Chemical elements

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Proceedings Article | 31 December 2003 Paper

Local spherical interface approximation in the analysis of field propagation through modulated interfaces

Hanna Lajunen, Jani Tervo, Tuomas Vallius, Jari Turunen, Frank Wyrowski

Proceedings Volume 5182, (2003) https://doi.org/10.1117/12.509476

KEYWORDS: Interfaces, Spherical lenses, Wave propagation, Diffraction, Radio propagation, Modulation, Modeling, Diffraction gratings, Chemical elements, Geometrical optics

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