Dr. Sekartedjo Koentjoro Profile

Dr. Sekartedjo Koentjoro

at Institut Teknologi Sepuluh Nopember

SPIE Involvement:

Author

Publications (13)

Proceedings Article | 12 March 2021 Paper

Paper

Absorption spectra of edible oils on UV-visible-near infrared region

Ika Puspita, Fredy Kurniawan, A. Hatta, Sekartedjo Koentjoro

Proceedings Volume 11789, 117890D (2021) https://doi.org/10.1117/12.2587047

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Proceedings Article | 11 April 2019 Paper

Paper

Characterization of diffuse reflectance spectrum from fruit plant leaves as chlorophyll concentration measurement technique

Intan Kurniawati, Aulia M. T. Nasution, Sekartedjo Koentjoro, Iwan Setiadi

Proceedings Volume 11044, 110440L (2019) https://doi.org/10.1117/12.2504946

KEYWORDS: Diffuse reflectance spectroscopy, Absorption spectroscopy, Reflectivity, Ocean optics, Agriculture, Fiber optics, Tissue optics, Absorption, Scattering, Halogens

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Proceedings Article | 11 April 2019 Paper

Paper

Characterization of diffuse reflectance spectrum from vegetable leaves as the techniques of chlorophyll concentration measurement

Wilda Prihasty, Aulia M. T. Nasution, Sekartedjo Koentjoro, Iwan Cony Setiadi

Proceedings Volume 11044, 110440K (2019) https://doi.org/10.1117/12.2504888

KEYWORDS: Diffuse reflectance spectroscopy, Absorption, Data modeling, Reflectivity, Mathematical modeling, Photosynthesis, Nondestructive evaluation, Fiber optics, Absorbance, Tissue optics

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Proceedings Article | 11 April 2019 Paper

Paper

An alternating current sensor based on SMS fiber structure and ferrofluids

Hadrian H. S., Sekartedjo , Agus Muhamad H., Ninik Irawati

Proceedings Volume 11044, 110440V (2019) https://doi.org/10.1117/12.2504954

KEYWORDS: Sensors, Structured optical fibers, Optical fibers, Magnetism, Fiber optics sensors, Refractive index, Iron, Nanoparticles, Optical power meters, Multimode fibers

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Proceedings Article | 11 April 2019 Paper

Paper

Detection of lard adulteration in palm oil using U-shaped plastic optical fiber

Fadhel Husada, Ika Puspita, A. Hatta, Sekartedjo

Proceedings Volume 11044, 110440W (2019) https://doi.org/10.1117/12.2504968

KEYWORDS: Sensors, Phase only filters, Polymer optical fibers, Refractive index, Infrared sensors, Light emitting diodes, Optical fibers, Sensor performance, Light sources, Cladding

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Proceedings Article | 11 April 2019 Paper

Paper

Detection of lard adulteration in olive oil by using tapered Plastic Optical Fiber (POF) spectroscopy

Ika Puspita, Fadhel Husada, Sekartedjo , A. Hatta

Proceedings Volume 11044, 110440H (2019) https://doi.org/10.1117/12.2504687

KEYWORDS: Spectroscopy, Polymer optical fibers, Optical spectroscopy, Tapered optical fibers, Fiber optics, Optical fibers, Vegetable oil

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Proceedings Article | 11 November 2016 Paper

Paper

Multimode-singlemode-multimode fiber sensor for alcohol sensing application

Iftihatur Rofi'ah, A. Hatta, Sekartedjo Sekartedjo

Proceedings Volume 10150, 101501D (2016) https://doi.org/10.1117/12.2248491

KEYWORDS: Fiber optics sensors, Sensors, Single mode fibers, Multimode fibers, Fiber optics, Liquids, Cladding, Environmental sensing, Optical fibers, Refractive index

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Proceedings Article | 11 November 2016 Paper

Paper

Alcohol sensor based on u-bent hetero-structured fiber optic

Sefi Patrialova, Agus Hatta, Sekartedjo Sekartedjo

Proceedings Volume 10150, 101501F (2016) https://doi.org/10.1117/12.2248500

KEYWORDS: Fiber optics sensors, Sensors, Fiber optics, Fiber optics tests, Structural sensing, Cladding, Chemistry, Refractive index, Liquids, Single mode fibers

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Proceedings Article | 11 November 2016 Paper

Paper

Crude oil specific gravity sensor design using polymer optical fiber with structural imperfection

Junivan Sulistianto, Agus Hatta, Ir. Sekartedjo

Proceedings Volume 10150, 101500P (2016) https://doi.org/10.1117/12.2248492

KEYWORDS: Sensors, Polymer optical fibers, Optical design, Structural design, Optical fibers, Cladding, Fiber optics sensors, Fiber optics, Light sources, Sensor performance

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Proceedings Article | 11 November 2016 Paper

Paper

Alcohol sensor based on single-mode-multimode-single-mode fiber structure

Mefina Yulias R., A. Hatta, Sekartedjo Sekartedjo

Proceedings Volume 10150, 101500O (2016) https://doi.org/10.1117/12.2248489

KEYWORDS: Sensors, Structured optical fibers, Fiber optics sensors, Refractive index, Multimode fibers, Cladding, Single mode fibers, Optics manufacturing, Fabrication, Laser optics

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Proceedings Article | 11 November 2016 Paper

Paper

Investigation of load effect on macro-bend losses for an SMS fiber structure with a small bend radius

Fitri Rahmah, Sekartedjo Sekartedjo, Agus Muhamad Hatta

Proceedings Volume 10150, 101500L (2016) https://doi.org/10.1117/12.2248468

KEYWORDS: Structured optical fibers, Modeling, Multimode fibers, Sensors, Fiber optics sensors, Brain-machine interfaces, Beam propagation method, Refractive index, Physics, Sensor technology

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Proceedings Article | 9 January 2015 Paper

Paper

SMS fiber structure with a multimode fiber graded index type for a temperature measurement using an intensity-based interrogation system

Ainun Mufarrikha, Agus Hatta, Sekartedjo Koentjoro

Proceedings Volume 9444, 944410 (2015) https://doi.org/10.1117/12.2083393

KEYWORDS: Temperature metrology, Structured optical fibers, Temperature sensors, Single mode fibers, Multimode fibers, Sensors, Refractive index, Fiber Bragg gratings, Photonics, Process control

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Proceedings Article | 9 January 2015 Paper

Paper

Load effect on an SMS fiber structure embedded in a high-density polyethylene

Ika Puspita, Fitri Rahmah, Agus Hatta, Sekartedjo Koentjoro

Proceedings Volume 9444, 94440W (2015) https://doi.org/10.1117/12.2083343

KEYWORDS: Structured optical fibers, Sensors, Multimode fibers, Optical fibers, Photonics, Refractive index, Physics, Sensor technology, Electromagnetic interference, Corrosion

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Showing 5 of 13 publications

Conference Committee Involvement (1)

Third International Seminar on Photonics, Optics, and Its Applications (ISPhOA 2018)

3 August 2018 | Surabaya, Indonesia

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