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dr. R. Hesper

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r.hesper rug.nl

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Landleven12
Gebouw 5419, ruimte 0083
9747 AD
Groningen
Netherlands
Phone: +31 50 363 4018Fax: +31 50 363 6100
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  1. 2019
  2. Khudchenko, A., Hesper, R., Baryshev, A. M., Barkhof, J., Rudakov, K., Montofre, D., Nguyen, D. V., Koshelets, V. P., Dmitriev, P. N., Fominsky, M., Heiter, C., Heyminck, S., Guesten, R., & Klein, B. (2019). Design and Performance of a Sideband Separating SIS Mixer for 800-950 GHz. Ieee transactions on terahertz science and technology, 9(6), 532-539. https://doi.org/10.1109/TTHZ.2019.2939003
  3. Montofre, D. A., Molina, R., Khudchenko, A., Hesper, R., Baryshev, A. M., Reyes, N., & Mena, F. P. (2019). High-Performance Smooth-Walled Horn Antennas for THz Frequency Range: Design and Evaluation. Ieee transactions on terahertz science and technology, 9(6), 587-597. https://doi.org/10.1109/TTHZ.2019.2938985
  4. Porth, O., Chatterjee, K., Narayan, R., Gammie, C. F., Mizuno, Y., Anninos, P., Baker, J. G., Bugli, M., Chan, C., Davelaar, J., Del Zanna, L., Etienne, Z. B., Fragile, P. C., Kelly, B. J., Liska, M., Markoff, S., McKinney, J. C., Mishra, B., Noble, S. C., ... Collaboration, E. H. T. (2019). The Event Horizon General Relativistic Magnetohydrodynamic Code Comparison Project. The Astrophysical Journal Supplement Series, 243(2), [26]. https://doi.org/10.3847/1538-4365/ab29fd
  5. Hesper, R., Barkhof, J., Vos, T., & Baryshev, A. (2019). Advanced tuning algorithms for high-frequency SIS mixers. Paper presented at ALMA Development Workshop, ESO 2019, Garching, Germany. https://doi.org/10.5281/zenodo.3240311
  6. Montenegro-Montes, F. M., Torstensson, K., Parra, R., Pérez-Beaupuits, J. P., Nyman, L. -Å., Agurto, C., Azagra, F., Cárdenas, M., González, E., MacAuliffe, F., Venegas, P., De Breuck, C., Bergman, P., Gunawan, D. S., Wyrowski, F., Stanke, T., Belitsky, V., Fredrixon, M., Meledin, D., ... Khudchenko, A. (2019). Orion-KL Observations with the Extended Tuning Range of the New SEPIA660 APEX Facility Instrument. The Messenger, 176, 20-24. https://doi.org/10.18727/0722-6691/5137
  7. Hesper, R., Khudchenko, A., Barychev, A., Barkhof, J., Bekema, M., & Haan-Stijkel, de, R. (2019). Towards sideband-separation for ALMA's highest bands. Paper presented at ALMA Development Workshop 2019, Garching, Germany. https://doi.org/10.5281/zenodo.3240349
  8. Collaboration, E. H. T., Akiyama, K., Alberdi, A., Alef, W., Asada, K., Azulay, R., Baczko, A-K., Ball, D., Baloković, M., Barrett, J., Bintley, D., Blackburn, L., Boland, W., Bouman, K. L., Bower, G. C., Bremer, M., Brinkerink, C. D., Brissenden, R., Britzen, S., ... Ziurys, L. (2019). First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole. The Astrophysical Journal, 875, L1. https://doi.org/10.3847/2041-8213/ab0ec7
  9. Collaboration, E. H. T., Akiyama, K., Alberdi, A., Alef, W., Asada, K., Azulay, R., Baczko, A-K., Ball, D., Baloković, M., Barrett, J., Bintley, D., Blackburn, L., Boland, W., Bouman, K. L., Bower, G. C., Bremer, M., Brinkerink, C. D., Brissenden, R., Britzen, S., ... Ziurys, L. (2019). First M87 Event Horizon Telescope Results. II. Array and Instrumentation. The Astrophysical Journal, 875(1), [L2]. https://doi.org/10.3847/2041-8213/ab0c96
  10. Collaboration, E. H. T., Akiyama, K., Alberdi, A., Alef, W., Asada, K., Azulay, R., Baczko, A-K., Ball, D., Baloković, M., Barrett, J., Bintley, D., Blackburn, L., Boland, W., Bouman, K. L., Bower, G. C., Bremer, M., Brinkerink, C. D., Brissenden, R., Britzen, S., ... Yamaguchi, P. (2019). First M87 Event Horizon Telescope Results. III. Data Processing and Calibration. The Astrophysical Journal, 875(1), [L3]. https://doi.org/10.3847/2041-8213/ab0c57
  11. Collaboration, E. H. T., Akiyama, K., Alberdi, A., Alef, W., Asada, K., Azulay, R., Baczko, A-K., Ball, D., Baloković, M., Barrett, J., Bintley, D., Blackburn, L., Boland, W., Bouman, K. L., Bower, G. C., Bremer, M., Brinkerink, C. D., Brissenden, R., Britzen, S., ... Yamaguchi, P. (2019). First M87 Event Horizon Telescope Results. IV. Imaging the Central Supermassive Black Hole. The Astrophysical Journal, 875(1), [L4]. https://doi.org/10.3847/2041-8213/ab0e85
  12. Collaboration, E. H. T., Akiyama, K., Alberdi, A., Alef, W., Asada, K., Azulay, R., Baczko, A-K., Ball, D., Baloković, M., Barrett, J., Bintley, D., Blackburn, L., Boland, W., Bouman, K. L., Bower, G. C., Bremer, M., Brinkerink, C. D., Brissenden, R., Britzen, S., ... Zhang, S. (2019). First M87 Event Horizon Telescope Results. V. Physical Origin of the Asymmetric Ring. The Astrophysical Journal, 875(1), L5. https://doi.org/10.3847/2041-8213/ab0f43
  13. Collaboration, E. H. T., Akiyama, K., Alberdi, A., Alef, W., Asada, K., Azulay, R., Baczko, A-K., Ball, D., Baloković, M., Barrett, J., Bintley, D., Blackburn, L., Boland, W., Bouman, K. L., Bower, G. C., Bremer, M., Brinkerink, C. D., Brissenden, R., Britzen, S., ... Yamaguchi, P. (2019). First M87 Event Horizon Telescope Results. VI. The Shadow and Mass of the Central Black Hole. The Astrophysical Journal, 875, L6. https://doi.org/10.3847/2041-8213/ab1141
  14. 2018
  15. Belitsky, V., Lapkin, I., Fredrixon, M., Meledin, D., Sundin, E., Billade, B., Ferm, S. -E., Pavolotsky, A., Rashid, H., Strandberg, M., Desmaris, V., Ermakov, A., Krause, S., Olberg, M., Aghdam, P., Shafiee, S., Bergman, P., De Beck, E., Olofsson, H., ... Koops, A. (2018). Corrigendum: SEPIA - a new single pixel receiver at the APEX telescope (. Astronomy & astrophysics, 620, [C2]. https://doi.org/10.1051/0004-6361/201731458e
  16. Rodriguez, R., Finger, R., Mena, F. P., Alvear, A., Fuentes, R., Khudchenko, A., Hesper, R., Baryshev, A. M., Reyes, N., & Bronfman, L. (2018). Digital compensation of the sideband-rejection ratio in a fully analog 2SB sub-millimeter receiver. Astronomy & astrophysics, 619, [153]. https://doi.org/10.1051/0004-6361/201732316
  17. Belitsky, V., Lapkin, I., Fredrixon, M., Meledin, D., Sundin, E., Billade, B., Ferm, S. -E., Pavolotsky, A., Rashid, H., Strandberg, M., Desmaris, V., Ermakov, A., Krause, S., Olberg, M., Aghdam, P., Shafiee, S., Bergman, P., De Beck, E., Olofsson, H., ... Koops, A. (2018). SEPIA - a new single pixel receiver at the APEX telescope. Astronomy & astrophysics, 612, [23]. https://doi.org/10.1051/0004-6361/201731458
  18. Belitsky, V., Bylund, M., Desmaris, V., Ermakov, A., Ferm, S. -E., Fredrixon, M., Krause, S., Lapkin, I., Meledin, D., Pavolotsky, A., Rashid, H., Shafiee, S., Strandberg, M., Sundin, E., Aghdam, P. Y., Hesper, R., Barkhof, J., Bekema, M. E., Adema, J., ... Bryerton, E. (2018). ALMA Band 5 receiver cartridge. Design, performance, and commissioning. Astronomy & astrophysics, 611, [A98]. https://doi.org/10.1051/0004-6361/201731883
  19. Hesper, R., Khudchenko, A., Lindemulder, M., Bekema, M., De Haan-Stijkel, R., Barkhof, J., Adema, J., & Baryshev, A. (2018). A Deployable 600-720GHz ALMA-TypeSideband-Separating Receiver Cartridge. In 29th IEEE International Symposium on Space THz Technology
  20. Khudchenko, A., Finger, R., Baryshev, A. M., Mena, F. P., Rodriguez, R., Hesper, R., Fuentes, R., & Bronfman, L. (2018). Study of the Calibration Channel Width for a Digital Sideband Separating System for SIS 2SB Receiver. In Atacama Large-Aperture Submm/mm Telescope (AtLAST) (pp. 19) https://doi.org/10.5281/zenodo.1159039
  21. 2017
  22. Rudakov, K., Dmitriev, P., Baryshev, A., Khudchenko, A., Hesper, R., Kiselev, O., & Koshelets, V. (2017). Waveguide receiver design prototypes for the 211-275 GHz and 790-950 GHz frequency ranges. In 2017 32nd General Assembly and Scientific Symposium of the International Union of Radio Science, URSI GASS 2017 (pp. 1-4). (2017 32nd General Assembly and Scientific Symposium of the International Union of Radio Science, URSI GASS 2017; Vol. 2017-January). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.23919/URSIGASS.2017.8104996
  23. Hesper, R., Khudchenko, A., Baryshev, A. M., Barkhof, J., & Mena, F. P. (2017). A High-Performance 650-GHz Sideband-Separating Mixer—Design and Results. Ieee transactions on terahertz science and technology, 7(6), 686-693. https://doi.org/10.1109/TTHZ.2017.2758270
  24. Khudchenko, A., Baryshev, A. M., Hesper, R., Bekema, M. E., De Haan Stijkel, R., Barkhof, J., Van Nguyen, D., Koshelets, V. P., Dmitriev, P., Fominsky, M., Rudakov, K., Heyminck, S., & Güsten, R. (2017). Performance of SIS mixers for upgrade of CHAMP+ 7-pixel arrays. Paper presented at 28th International Symposium on Space Terahertz Technology, ISSTT 2017, Cologne, Germany.
  25. Davis, K. K., Yates, S. J. C., Jellema, W., Hesper, R., Baselmans, J. J. A., Groppi, C., Ferrari, L., Kohno, K., & Baryshev, A. (2017). Complex beam mapping of large MKID focal plane arrays. Paper presented at 28th International Symposium on Space Terahertz Technology, ISSTT 2017, Cologne, Germany.
  26. MontofrÉ, D., Baryshev, A., Hesper, R., & Mena, F. P. (2017). Design of an optical beam combiner for dual-frequency observation with ALMA. Paper presented at 28th International Symposium on Space Terahertz Technology, ISSTT 2017, Cologne, Germany.
  27. Baryshev, A., Carter, M., Jellema, W., & Hesper, R. (2017). Design and evaluation of ALMA band 9 quasioptical system. In E. Armandillo, & J. Costeraste (Eds.), International Conference on Space Optics, ICSO 2004 (Vol. 554, pp. 365-371). [105680U] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 10568). SPIE. https://doi.org/10.1117/12.2308030
  28. Khudchenko, A., Hesper, R., Baryshev, A. M., Barkhof, J., & Mena, F. P. (2017). Modular 2SB SIS Receiver for 600-720 GHz: Performance and Characterization Methods. Ieee transactions on terahertz science and technology, 7(1), 2-9. https://doi.org/10.1109/TTHZ.2016.2633528
  29. Hesper, R., Khudchenko, A., Baryshev, A. M., Barkhof, J., & Mena, F. P. (2017). A high-performance 650GHz sideband-separating mixer -Design and results. Paper presented at 28th International Symposium on Space Terahertz Technology, ISSTT 2017, Cologne, Germany.
  30. 2016
  31. Immer, K., Belitsky, V., Olberg, M., De Breuck, C., Conway, J., Montenegro-Montes, F. M., Perez-Beaupuits, J. -P., Torstensson, K., Billade, B., De Beck, E., Ermakov, A., Ferm, S. -E., Fredrixon, M., Lapkin, I., Meledin, D., Pavolotsky, A., Strandberg, M., Sundin, E., Arumugam, V., ... Klapwijk, T. M. (2016). SEPIA: A New Instrument for the Atacama Pathfinder Experiment (APEX) Telescope. The Messenger, 165, 13-17. http://adsabs.harvard.edu/abs/2016Msngr.165...13I
  32. Khudchenko, A., Baryshev, A. M., Rudakov, K., Koshelets, V., Dmitriev, P., Hesper, R., & De Jong, L. (2016). High-Gap Nb-AlN-NbN SIS Junctions for Frequency Band 790-950 GHz. Ieee transactions on terahertz science and technology, 6(1), 127-132. https://doi.org/10.1109/TTHZ.2015.2504783
  33. Hesper, R., Khudchenko, A., Baryshev, A. M., Barkhof, J., & Mena, F. P. (2016). A new high-performance sideband-separating mixer for 650GHz. In Proc. SPIE 9914, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VIII, 99140G (July 19, 2016) https://doi.org/10.1117/12.2233065
  34. Montofré, D., Baryshev, A., Mena, F. P., & Hesper, R. (2016). Design of a dual band optical calibration device for ALMA receivers. In Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2016 41st International Conference on 25-30 Sept. 2016 https://doi.org/10.1109/IRMMW-THz.2016.7758444
  35. 2015
  36. Finger, R., Mena, F. P., Baryshev, A., Khudchenko, A., Rodriguez, R., Huaracan, E., Alvear, A., Barkhof, J., Hesper, R., & Bronfman, L. (2015). Ultra-pure digital sideband separation at sub-millimeter wavelengths. Astronomy and astrophysics, 584, [A3]. https://doi.org/10.1051/0004-6361/201526503
  37. Baryshev, A., Hesper, R., & Wild, W. (2015). ALMA Band 9 receiver design and performance. In 2015 IEEE MTT-S International Microwave Symposium, IMS 2015 [7167144] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/MWSYM.2015.7167144
  38. Baryshev, A. M., Hesper, R., Mena, F. P., Klapwijk, T. M., van Kempen, T. A., Hogerheijde, M. R., Jackson, B. D., Adema, J., Gerlofsma, G. J., Bekema, M. E., Barkhof, J., de Haan-Stijkel, L. H. R., van den Bemt, M., Koops, A., Keizer, K., Pieters, C., Koops van het Jagt, J., Schaeffer, H. H. A., Zijlstra, T., ... Wild, W. (2015). The ALMA Band 9 receiver: Design, construction, characterization, and first light. Astronomy and astrophysics, 577, [A129]. https://doi.org/10.1051/0004-6361/201425529
  39. 2012
  40. Baryshev, A., Khudchenko, A. V., & Hesper, R. (2012). Dual frequency extension for ALMA. In Proceedings of 2012 37th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2012) IEEE (The Institute of Electrical and Electronics Engineers). https://doi.org/10.1109/IRMMW-THz.2012.6379498
  41. Khudchenko, A., Hesper, R., Barychev, A., Gerlofma, G., Barkhof, J., Adema, J., Mena, P., Klapwijk, T., & Spaans, M. (2012). Sideband separating mixer for 600-720 GHz for ALMA band 9 upgrade. In Proceedings of the SPIE: Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VI (Vol. 8452, pp. 845214). [845214] https://doi.org/10.1117/12.927285
  42. 2011
  43. Mena, F. P., Kooi, J. W., Baryshev, A. M., Lodewijk, C. F. J., Zijlstra, T., Hesper, R., Gerlofsma, G., Klapwijk, T. M., & Wild, W. (2011). Design and Performance of a 600-720-GHz Sideband-Separating Receiver Using {{AlO}}_{x} and AlN SIS Junctions. Ieee transactions on microwave theory and techniques, 59(1), 166-177. https://doi.org/10.1109/TMTT.2010.2090417
  44. Khudchenko, A., Hesper, R., Baryshev, A., Mena, F. P., Gerlofma, G., Zijlstra, T., Klapwijk, T. M., Kooi, J. W., & Spaans, M. (2011). First Results of the Sideband-Separating Mixer for ALMA Band 9 Upgrade. In Proceedings of the 22nd International Symposium on Space Terahertz Technology, April 25-28, 2011, Tucson, AZ, pp. 143-149 (pp. 143-149)
  45. 2010
  46. Khudchenko, A., Hesper, R., Barychev, A., Gerlofma, G., Mena, P., Zijlstra, T., Klapwijk, T., Spaans, M., & Kooi, J. W. (2010). Sideband Separating Mixer for 600-720 GHz. In C. Zhang, XC. Zhang, PH. Siegel, L. He, & SC. Shi (Eds.), Infrared, Millimeter Wave, and Terahertz Technologies (pp. 78542R). (Proceedings of SPIE-The International Society for Optical Engineering; Vol. 7854). SPIE - INT SOC OPTICAL ENGINEERING. https://doi.org/10.1117/12.869594
  47. 2009
  48. Hesper, R., Gerlofsma, G., Mena, P., Spaans, M., & Baryshev, A. (2009). A Sideband-Separating Mixer Upgrade for ALMA Band 9. In Proceedings of 20th International symposium on space terahertz technology (pp. 257-260). ISSTT. http://adsabs.harvard.edu/abs/2009stt..conf..257H
  49. 2008
  50. Baryshev, A. M., Mena, F. P., Adema, J., Hesper, R., Jackson, B., Gerlofsma, G., Bekema, M., Keizer, K., Schaeffer, H., Barkhof, J., Lodewijk, C. F. J., Ludkov, D., Zijlstra, T., van Zeijl, E., Klapwijk, T. M., & Wild, W. (2008). ALMA Band 9 cartridge. In W. Wild (Ed.), Proceedings of the Ninteenth International Symposium on Space Terahertz Technology, held April 28-30, 2008, in Groningen (pp. 258-262) http://adsabs.harvard.edu/abs/2008stt..conf..258B
  51. Bout, J., Baryshev, A., Barkhof, J., Mena, F. P., Hesper, R., Jackson, B., Wild, W., Lodewijk, C. F. J., Ludkov, D., Zijlstra, T., van Zeijl, E., & Klapwijk, T. M. (2008). AlN Barrier SIS Junctions in Submm Heterodyne Receivers: Operational Aspects. In W. Wild (Ed.), Proceedings of the Ninteenth International Symposium on Space Terahertz Technology, held April 28-30, 2008, in Groningen (pp. 421) http://adsabs.harvard.edu/abs/2008stt..conf..421B
  52. Kasemann, C., Heyminck, S., Bell, A., Belloche, A., Castenholz, C., Güsten, R., Hafok, H., Henseler, A., Hochgürtel, S., Klein, B., Klein, T., Krämer, I., Korn, A., Meyer, K., Muders, D., Pacek, F., Schäafer, F., Schneider, G., Wieching, G., ... Klapwijk, T. M. (2008). CHAMP: A powerful submm Heterodyne Array. In Proceedings of the Ninteenth International Symposium on Space Terahertz Technology, held April 28-30, 2008, in Groningen (pp. 166) http://adsabs.harvard.edu/abs/2008stt..conf..166K
  53. Mena, F. P., Kooi, J. W., Baryshev, A. M., Lodewijk, C. F. J., Hesper, R., Wild, W., & Klapwijk, T. M. (2008). An SIS-based sideband-separating heterodyne mixer optimized for the 600 to 720 GHz band. In S. Hoste, & M. Ausloos (Eds.), 8TH EUROPEAN CONFERENCE ON APPLIED SUPERCONDUCTIVITY (EUCAS'07) (Journal of Physics Conference Series; Vol. 97). IOP PUBLISHING LTD. https://doi.org/10.1088/1742-6596/97/1/012331
  54. 2007
  55. Mena, F. P., Kooi, J., Baryshev, A. M., Lodewijk, C. F. J., Klapwijk, T. M., Hesper, R., & Wild, W. (2007). Construction and Characterization of a Sideband-separating heterodyne mixer for Band 9 of ALMA. Proceedings of the International Symposium on Space Terahertz Technology, 39-43. http://adsabs.harvard.edu/abs/2007stt..conf...39M
  56. Yagoubov, P., Baryshev, A., Hesper, R., Koshelets, V., Wagner, G., Birk, M., & Murk, A. (2007). Optical design of the submillimeter limb sounder TELIS. In Proceedings of the Eighteenth International Symposium on Space Terahertz Technology, held March 21-23, 2007, at California Institute of Technology, Pasadena, CA USA (pp. 168) http://adsabs.harvard.edu/abs/2007stt..conf..168Y
  57. Baryshev, A. M., Hesper, R., Mena, F. P., Jackson, B. D., Adema, J., Barkhof, J., Wild, W., Candotti, M., Whale, M., Lodewijk, C., Loudkov, D., Zijlstra, T., & Klapwijk, T. M. (2007). Performance of ALMA band 9 receiver series. Proceedings of the International Symposium on Space Terahertz Technology, 164-167. http://adsabs.harvard.edu/abs/2007stt..conf..164B
  58. Baryshev, A. M., Jellema, W., Hesper, R., & Wild, W. (2007). Reflection measurement of absorption coatings using 600-670 GHz vector network analyzer. Proceedings of the International Symposium on Space Terahertz Technology, 157. http://adsabs.harvard.edu/abs/2007stt..conf..157B
  59. Romanini, M., Baryshev, A. M., Hesper, R., Mena, F. P., & Wild, W. (2007). Sideband ratio in double sideband receivers with a Michelson interferometer. Proceedings of the International Symposium on Space Terahertz Technology, 150. http://adsabs.harvard.edu/abs/2007stt..conf..150R
  60. Brettschneider, A., Klapwijk, T. M., Zijlstra, T., Baryshev, A., & Hesper, R. (2007). Wideband Receiver Based on AlN Barriers. Applied Physics Letters, 91, 443. http://adsabs.harvard.edu/abs/2010stt..conf..443B
  61. 2006
  62. Baryshev, A. M., Hesper, R., Mena, F. P., Jackson, B. D., Adema, J., Schaeffer, H., Barkhof, J., Wild, W., Candotti, M., Lodewijk, C., Loudkov, D., Zijlstra, T., Noroozian, ., & Klapwijk, T. M. (2006). Design and development of a 600-720 GHz receiver for ALMA Band 9. Proceedings of the International Symposium on Space Terahertz Technology, 89-89. http://adsabs.harvard.edu/abs/2006stt..conf...89B
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