Markku Sopanen Group
Organisational unit: Research group
Research outputs
- 2019
- Published
Effects of indium flow rate on the structural, morphological, optical and electrical properties of InGaN layers grown by metal organic chemical vapour deposition
Prabakaran, K., Raju, R., Arivazhagan, P., Jayasakthi, M., Sanjay, S., Surender, S., Pradeep, S., Balaji, M. & Baskar, K., 30 Nov 2019, In : Journal of Alloys and Compounds. 811, 151803.Research output: Contribution to journal › Article › Scientific › peer-review
- Published
Selective terahertz emission due to electrically excited 2D plasmons in AlGaN/GaN heterostructure
Shalygin, V. A., Moldavskaya, M. D., Vinnichenko, M. Y., Maremyanin, K. V., Artemyev, A. A., Panevin, V. Y., Vorobjev, L. E., Firsov, D. A., Korotyeyev, V. V., Sakharov, A. V. & 6 others, , 14 Nov 2019, In : Journal of Applied Physics. 126, 18, 183104.Research output: Contribution to journal › Article › Scientific › peer-review
- E-pub ahead of print
Metalorganic chemical vapor deposition of aluminum nitride on vertical surfaces
Österlund, E., Suihkonen, S., Ross, G., Torkkeli, A., Kuisma, H. & Paulasto-Kröckel, M., 11 Nov 2019, In : Journal of Crystal Growth. 531, 125345.Research output: Contribution to journal › Article › Scientific › peer-review
- Published
Terahertz Emission due to Radiative Decay of Hot 2D Plasmons in AlGaN/GaN Heterojunction
Shalygin, V. A., Moldavskaya, M. D., Vinnichenko, M. Y., Panevin, V. Y., Maremyanin, K. V., Firsov, D. A., Vorobjev, L. E., Sakharov, A. V., Zavarin, E. E., Arteev, D. S. & 4 others, , 1 Sep 2019, IRMMW-THz 2019 - 44th International Conference on Infrared, Millimeter, and Terahertz Waves. IEEE, 8873862. (International Conference on Infrared, Millimeter, and Terahertz Waves).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review
- Published
Epi-Gd2O3/AlGaN/GaN MOS HEMT on 150 mm Si wafer: A fully epitaxial system for high power application
Sarkar, R., Bhunia, S., Nag, D., Barik, B. C., Das Gupta, K., Saha, D., Ganguly, S., Laha, A., Lemettinen, J., Kauppinen, C. & 4 others, , 5 Aug 2019, In : Applied Physics Letters. 115, 6, 063502.Research output: Contribution to journal › Article › Scientific › peer-review
- Published
Nitrogen-polar polarization-doped field-effect transistor based on Al0.8Ga0.2N/AlN on SiC with drain current over 100 mA/mm
Lemettinen, J., Chowdhury, N., Okumura, H., Kim, I., Suihkonen, S. & Palacios, T., 1 Aug 2019, In : IEEE Electron Device Letters. 40, 8, p. 1245-1248 4 p., 8741077.Research output: Contribution to journal › Article › Scientific › peer-review
- Published
In-situ annealing characterization of atomic-layer-deposited Al2O3 in N2 , H2 and vacuum atmospheres
Broas, M., Lemettinen, J., Sajavaara, T., Tilli, M., Vuorinen, V., Suihkonen, S. & Paulasto-Kröckel, M., 31 Jul 2019, In : Thin Solid Films. 682, p. 147-155 9 p.Research output: Contribution to journal › Article › Scientific › peer-review
- Published
P-Channel GaN transistor based on p-GaN/AlGaN/GaN on Si
Chowdhury, N., Lemettinen, J., Xie, Q., Zhang, Y., Rajput, N. S., Xiang, P., Cheng, K., Suihkonen, S., Then, H. W. & Palacios, T., 1 Jul 2019, In : IEEE Electron Device Letters. 40, 7, p. 1036-1039 4 p., 8713471.Research output: Contribution to journal › Article › Scientific › peer-review
- Published
Structural, morphological, optical and electrical characterization of InGaN/GaN MQW structures for optoelectronic applications
Prabakaran, K., Jayasakthi, M., Surender, S., Pradeep, S., Sanjay, S., Ramesh, R., Balaji, M., Gautier, N. & Baskar, K., 15 May 2019, In : Applied Surface Science. 476, p. 993-999 7 p.Research output: Contribution to journal › Article › Scientific › peer-review
- Published
Influence of InGaN interlayer thickness on GaN layers grown by metal organic chemical vapour deposition
Prabakaran, K., Jayasakthi, M., Surender, S., Pradeep, S., Sanjay, S., Ramesh, R., Balaji, M. & Baskar, K., 1 Mar 2019, In : APPLIED PHYSICS A-MATERIALS SCIENCE AND PROCESSING. 125, 3, 7 p., 206.Research output: Contribution to journal › Article › Scientific › peer-review
- Published
Aluminum Nitride Transition Layer for Power Electronics Applications Grown by Plasma-Enhanced Atomic Layer Deposition
Seppänen, H., Kim, I., Etula, J., Ubyivovk, E., Buravlev, A. & Lipsanen, H., 28 Jan 2019, In : Materials. 12, 3, 8 p., 406.Research output: Contribution to journal › Article › Scientific › peer-review
- Published
Point defects induced work function modulation of β-Ga2O3
Tak, B. R., Dewan, S., Goyal, A., Pathak, R., Gupta, V., Kapoor, A. K., Nagarajan, S. & Singh, R., 28 Jan 2019, In : Applied Surface Science. 465, p. 973-978 6 p.Research output: Contribution to journal › Article › Scientific › peer-review
- Published
Site-specific growth of oriented ZnO nanocrystal arrays
Bai, R., Pandya, D., Chaudhary, S., Dhaka, V., Khayrudinov, V., Lemettinen, J., Kauppinen, C. & Lipsanen, H., 1 Jan 2019, In : Beilstein Journal of Nanotechnology. 9, 1, p. 274-280 7 p.Research output: Contribution to journal › Article › Scientific › peer-review
- 2018
- Published
Investigations on morphology, growth mode and indium incorporation in MOCVD grown InGaN/n-GaN heterostructures
Prabakaran, K., Jayasakthi, M., Surender, S., Pradeep, S., Sanjay, S., Ramesh, R., Balaji, M. & Baskar, K., 1 Dec 2018, In : Optik. 175, p. 154-162 9 p.Research output: Contribution to journal › Article › Scientific › peer-review
- Published
N-polar AlN buffer growth by metal-organic vapor phase epitaxy for transistor applications
Lemettinen, J., Okumura, H., Palacios, T. & Suihkonen, S., Oct 2018, In : APPLIED PHYSICS EXPRESS. 11, 10, 4 p., 101002.Research output: Contribution to journal › Article › Scientific › peer-review
- Published
Nonlinear plasmonic behavior of nanohole arrays in thin gold films for imaging lipids
Subramaniyam, N., Shah, A., Dreser, C., Isomäki, A., Fleischer, M. & Sopanen, M., 4 Jun 2018, In : Applied Physics Letters. 112, 23, 5 p., 233109.Research output: Contribution to journal › Article › Scientific › peer-review
- Published
Surface-core fibers: Plasmonics and sensing
Osório, J. H., Matikainen, A., Ludvigsen, H. & Cordeiro, C. M. B., 1 Jan 2018, Latin America Optics and Photonics Conference, LAOP 2018. Vol. Part F123-LAOP 2018.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review
- Published
Scalable nanofabrication techniques for III-V compound semiconductors and dielectrics
Kauppinen, C., 2018, Aalto University. 161 p.Research output: Thesis › Doctoral Thesis › Collection of Articles
- 2017
- Published
Atomic layer etching of gallium nitride (0001)
Kauppinen, C., Khan, S. A., Sundqvist, J., Suyatin, D. B., Suihkonen, S., Kauppinen, E. I. & Sopanen, M., 1 Nov 2017, In : JOURNAL OF VACUUM SCIENCE AND TECHNOLOGY A. 35, 6, p. 1-5 5 p., 060603.Research output: Contribution to journal › Article › Scientific › peer-review
- Published
Grass-like Alumina with Low Refractive Index for Scalable, Broadband, Omnidirectional Antireflection Coatings on Glass Using Atomic Layer Deposition
Kauppinen, C., Isakov, K. & Sopanen, M., 11 Apr 2017, In : ACS Applied Materials and Interfaces. 9, 17, p. 15038−15043 6 p.Research output: Contribution to journal › Article › Scientific › peer-review
- 2016
- Published
Non-destructive method for strain imaging in an individual GaN nanorod by confocal Raman technique
Nagarajan, S. & Sopanen, M., 26 Oct 2016, In : Journal of Physics D: Applied Physics. 49, 46, 6 p., 465303.Research output: Contribution to journal › Article › Scientific › peer-review
- Published
A technique for large-area position-controlled growth of GaAs nanowire arrays
Kauppinen, C., Haggren, T., Kravchenko, A., Jiang, H., Huhtio, T., Kauppinen, E., Dhaka, V., Suihkonen, S., Kaivola, M., Lipsanen, H. & 1 others, , 22 Feb 2016, In : Nanotechnology. 27, 13, 6 p., 135601.Research output: Contribution to journal › Article › Scientific › peer-review
- Published
Investigation of significantly high barrier height in Cu/GaN Schottky diode
Garg, M., Kumar, A., S., N., Sopanen, M. & Singh, R., 1 Jan 2016, In : AIP ADVANCES. 6, 1, p. 1-7 7 p., 015206.Research output: Contribution to journal › Article › Scientific › peer-review
- Published
Fluorescence-enhancing plasmonic silver nanostructures using azopolymer lithography
Pale, V., Kauppinen, C., Selin, J., Sopanen, M. & Tittonen, I., 2016, In : RSC Advances. 6, 53, p. 48129-48136 8 p., 6.Research output: Contribution to journal › Article › Scientific › peer-review
- Published
Study Of 1/f Noise Characteristics In Cu/n-GaN Schottky Barrier Diode
Garg, M., Kumar, A., Subramaniyam, N., Sopanen, M. & Singh, R., 2016, DAE SOLID STATE PHYSICS SYMPOSIUM 2015. Chitra, R., Bhattacharya, S. & Sahoo, NK. (eds.). 3 p. (AIP Conference Proceedings; vol. 1731).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review
- 2015
- Published
Temperature dependent 1/f noise characteristics of the Fe/GaN ferromagnetic Schottky barrier diode
Kumar, A., Subramaniyam, N., Sopanen, M., Kumar, V. & Singh, R., 7 Sep 2015, In : Semiconductor Science and Technology. 30, 10, 7 p., 105022.Research output: Contribution to journal › Article › Scientific › peer-review
- Published
Characterization of surface acoustic waves by stroboscopic white-light interferometry
Kokkonen, K., Lipiäinen, L., Shavrin, I., Novotny, S., Kaivola, M. & Ludvigsen, H., 2015, In : Optics Express. 23, 8, p. 9690-9695 6 p.Research output: Contribution to journal › Article › Scientific › peer-review
- Published
Foreword to the Special Issue on European Conference on Optical Communications (ECOC 2014)
Bigo, S., Nouchi, P., Ludvigsen, H., Lerminiaux, C., Ellis, A., Raz, O., Frignac, Y., Hamaide, J-P. & Chanclou, P., 2015, In : Journal of Lightwave Technology. 33, 5, p. 959-963Research output: Contribution to journal › Article › Scientific
- Published
Picosecond supercontinuum generation: Numerical and experimental analysis
Durairaj, V., Bravo Gonzalo, I., Novotny, S. & Ludvigsen, H., 2015, Northern Optics and Photonics (NOP 2015), 2-4 June 2015, Lappeenranta, Finland. LappeenrantaResearch output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review
- Published
Two-Photon Absorption in GaAs1-x-yPyNx Intermediate-Band Solar Cells
Jussila, H., Kivisaari, P., Lemettinen, J., Tanaka, T. & Sopanen, M., 2015, In : Physical Review Applied. 3, 5, p. 1-9 054007.Research output: Contribution to journal › Article › Scientific › peer-review
- 2014
- Published
Properties of atomic-layer-deposited ultra-thin AlN films on GaAs surfaces
Mattila, P., Bosund, M., Jussila, H., Aierken, A., Riikonen, J., Huhtio, T., Lipsanen, H. & Sopanen, M., 30 Sep 2014, In : Applied Surface Science. 314, p. 570-574 5 p.Research output: Contribution to journal › Article › Scientific › peer-review
- Published
Composition determination of quaternary GaAsPN layers from single X-ray diffraction measurement of quasi-forbidden (002) reflection
Tilli, J-M., Jussila, H., Yu, K. M., Huhtio, T. & Sopanen, M., 22 May 2014, In : Journal of Applied Physics. 115, 20, 8 p., 203102.Research output: Contribution to journal › Article › Scientific › peer-review
- Published
Diffusion injected multi-quantum well light-emitting diode structure
Riuttanen, L., Kivisaari, P., Nykänen, H., Svensk, O., Suihkonen, S., Oksanen, J., Tulkki, J. & Sopanen, M., 2014, In : Applied Physics Letters. 104Research output: Contribution to journal › Article › Scientific › peer-review
- Published
Full-field characterization of surface vibrations in microacoustic components by supercontinuum laser stroboscopic white-light interferometry
Lipiäinen, L., Kokkonen, K., Novotny, S., Shavrin, I., Ludvigsen, H. & Kaivola, M., 2014, 2014 IEEE International Ultrasonics Symposium. IEEE, p. 158-161 4 p.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific
- Published
Growth and characterisation of InGaN/GaN multi-quantum wells on etched c- and a-plane GaN nanopillars
Subramaniyam, N., Svensk, O., Amit, P., Shah, A., Rahman, A., Maliakkal, C. B., Bhattacharya, A., Lipsanen, H. & Sopanen, M., 2014, 17th International Conference on Metalorganic Vapor Phase Epitaxy, Lausanne, Switzerland, July 13-18, 2014. SwitzerlandResearch output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review
- Published
Growth and characterization of III-nitride nanostructures
Subramaniyam, N. & Sopanen, M., 2014, Nanotechnology seminar IIT Delhi Saha Institute of Nuclear Physics, Kolkata, India, November 24-25 and November 27-28, 2014.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific
- Published
Optical degradation and defect activation in MOVPE grown near surface InGaN quantum wells under low energy electron beam irradiation
Riuttanen, L., Nykänen, H., Suihkonen, S. & Sopanen, M., 2014, In : PHYSICA STATUS SOLIDI C: CURRENT TOPICS IN SOLID STATE PHYSICS. 11, p. 806809Research output: Contribution to journal › Article › Scientific › peer-review
- Published
Picosecond supercontinuum light source for stroboscopic white-light interferometry with freely adjustable pulse repetition rate
Novotny, S., Durairaj, V., Shavrin, I., Lipiäinen, L., Kokkonen, K., Kaivola, M. & Ludvigsen, H., 2014, In : Optics Express. 22, 11, p. 13625-13633 9 p.Research output: Contribution to journal › Article › Scientific › peer-review
- Published
Recent advances and applications of supercontinuum light
Ludvigsen, H., 2014, 16th International Conference on Transparent Optical Networks (ICTON 2014), Graz, Austria, July 6-10, 2014. p. Paper Th.B1.1 (International Conference on Transparent Optical Networks-ICTON).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific
- Published
Stress distribution in GaN nanopillars using confocal Raman mapping technique
Subramaniyam, N., Svensk, O., Lehtola, L., Lipsanen, H. & Sopanen, M., 2014, In : Applied Physics Letters. 104, 15, p. 1-5 5 p., 151906.Research output: Contribution to journal › Article › Scientific › peer-review
- Published
Substitutionality of nitrogen atoms and formation of nitrogen complexes and point defects in GaPN alloys
Jussila, H., Yu, K. M., Kujala, J., Tuomisto, F., Subramaniyam, N., Lemettinen, J., Huhtio, T., Tuomi, T. O., Lipsanen, H. & Sopanen, M., 2014, In : Journal of Physics D: Applied Physics. 47, 7, p. 1-6 6 p., 075106.Research output: Contribution to journal › Article › Scientific › peer-review
- 2013
- Published
Band-edge luminescence degradation by low energy electron beam irradiation in GaN grown by metal-organic vapor phase epitaxy in H2 and N 2 ambients
Nykänen, H., Suihkonen, S., Svensk, O., Sopanen, M. & Tuomisto, F., Nov 2013, In : Japanese Journal of Applied Physics. 52, 11S, p. 1-3 3 p., 11NH04.Research output: Contribution to journal › Article › Scientific › peer-review
- Published
Migration kinetics of ion-implanted beryllium in ZnO and GaN
Koskelo, O., Köster, U., Tuomisto, F., Helariutta, K., Sopanen, M., Suihkonen, S., Svensk, O. & Räisänen, J., 22 Aug 2013, In : Physica Scripta. 88, 3, p. 1-5 5 p., 035603.Research output: Contribution to journal › Article › Scientific › peer-review
- Published
Evaluation of critical thickness of GaP0.98N0.02 layer on GaP substrate by synchrotron X-ray diffraction topography
Jussila, H., Subramaniyam, N., Sintonen, S., Suihkonen, S., Lankinen, A., Huhtio, T., Paulmann, C., Lipsanen, H., Tuomi, T. & Sopanen, M., 1 May 2013, In : Thin Solid Films. 534, p. 680-684 5 p.Research output: Contribution to journal › Article › Scientific › peer-review
- Published
Fabrication of GaN Structures with Embedded Network of Voids Using Pillar Patterned GaN Templates
Svensk, O., Ali, M., Riuttanen, L., Törmä, P., Sintonen, S., Suihkonen, S., Sopanen, M. & Lipsanen, H., 1 May 2013, In : Journal of Crystal Growth. 370, p. 42-45 4 p.Research output: Contribution to journal › Article › Scientific › peer-review
- Published
Thermally assisted recovery of low energy electron beam irradiation induced optical degradation of GaN
Nykänen, H., Suihkonen, S., Sopanen, M. & Tuomisto, F., Mar 2013, In : PHYSICA STATUS SOLIDI C: CURRENT TOPICS IN SOLID STATE PHYSICS. 10, 3, p. 461-463 3 p.Research output: Contribution to journal › Article › Scientific › peer-review
- Published
Analysis of dislocations generated during metal-organic vapor phase epitaxy of GaN on patterned templates
Suihkonen, S., Ali, M., Törmä, P. T., Sintonen, S., Svensk, O., Sopanen, M., Lipsanen, H., Nevedomsky, V. N. & Bert, N. A., Jan 2013, In : Japanese Journal of Applied Physics. 52, 1S, p. 1-3 3 p., 01AF01.Research output: Contribution to journal › Article › Scientific › peer-review
- Published
Enhanced light extraction from InGaN/GaN quantum wells with silver gratings
Homeyer, E., Mattila, P., Oksanen, J., Sadi, T., Nykänen, H., Suihkonen, S., Symonds, C., Tulkki, J., Tuomisto, F., Sopanen, M. & 1 others, , 2013, In : Applied Physics Letters. 102, 8, p. 1-4 4 p., 081110.Research output: Contribution to journal › Article › Scientific › peer-review
- Published
Fiber-based true continuous-wave supercontinuum source
Shavrin, I., Novotny, S., Savelyev, A. G., Buchter, S. C. & Ludvigsen, H., 2013, 47th annual conference of the Finnish Physical Society (Physics Days 2013), Espoo, Finland, March 14-16, 2013. EspooResearch output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific
- Published
Mode excitation and supercontinuum generation in a few-mode suspended-core fiber
Shavrin, I., Novotny, S. & Ludvigsen, H., 2013, In : Optics Express. 21, 26Research output: Contribution to journal › Article › Scientific › peer-review
ID: 27992015