Journal papers

* Corresponding author


  • Vladimir Topic, Sushil Tandukar, Gyeong Cheol Park and Il-Sug Chung, “Two-step ohmic contacts for ultrahigh-speed hybrid silicon-on-chip lasers,” (submitted).
  • Il-Sug Chung*, Jesper Mørk, Geert Morthier, Wook-Jae Lee, and Jung Han Choi, “Hybrid Si-on-chip lasers with nanostructure: Impact of size and nanostructure,” Nanophotonics (Invited review paper in process; IF: 6.014).


  • Alireza Taghizadeh*, Are Rasoulzadeh Zali, Il-Sug Chung, and Mohammad K. Moravvej-Farshi, “All-Si photodetector for telecommunication wavelength based on sub wavelength grating structure and critical coupling,” AIP Advance 7, 095019 (Sep 20, 2017). [link]
  • Alireza Taghizadeh and Il-Sug Chung*, “Quasi bound states in the continuum with few unit cells of photonic crystal slab,” Applied Physics Letters 111, 031114 (July 21, 2017). [link]
  • Alireza Taghizadeh and Il-Sug Chung*, “Dynamic dispersion engineering in coupled vertical cavities employing a high-contrast grating,” Scientific Reports 7, 2123 (May 18, 2017). [link]


  • Gyeong Cheol Park, Weiqi Xue, Molly Piels, Darko Zibar, Jesper Mørk, Elizaveta Semenova, and Il-Sug Chung*, “Ultrahigh-speed Si-integrated on-chip laser with tailored dynamic characteristics,” Scientific Reports 6, 38801 (Dec 9, 2016). Demo of record high speed among Si-on-chip lasers. [link] 
  • Alireza Taghizadeh, Jesper Mørk, and Il-Sug Chung*, “Numerical Investigation of Vertical Cavity Lasers with High-Contrast Gratings Using the Fourier Modal Methods,” Journal of Lightwave Technology 34(18), 4240-4251 (Jul 26, 2016). [link]
  • Supannee Learkthanakhachon, Alireza Taghizadeh, Gyeong Cheol Park, Kresten Yvind, and Il-Sug Chung*, “Hybrid III-V/SOI resonant cavity enhanced photodetector,” Optics Express 24 (15), 16512-16519 (Jul 13 2016). First demo of an Si-on-chip hybrid resonant-cavity PD. [link]
  • Gyeong Cheol Park, Alireza Taghizadeh, and Il-Sug Chung*, “Hybrid grating reflectors: Origin of ultrabroad stopband,” Applied Physics Letters 108 (14), 141108 (Apr 7, 2016). [link]


  • Alireza Taghizadeh, Jesper Mørk, and Il-Sug Chung*, “Vertical-cavity in-plane heterostructures: Physics and Applications,” Applied Physics Letters, 107(18), 181107 (2 Nov, 2015). [link]
  • Dagmawi A. Bekele, Gyeong Cheol Park, Radu Malureanu, and Il-Sug Chung*, “Polarization-independent wideband high-index-contrast grating mirror,” IEEE Photonics Technology Letters, 27(16), 1733-1736 (Jun 1, 2015). [link]
  • Il-Sug Chung*, “Study on differences between high contrast grating reflectors for TM and TE polarizations and their impact on VCSEL designs,” Optics Express 23(13), 16730-16739 (Jun 17, 2015). [link]
  • Alireza Taghizadeh, Jesper Mørk, and Il-Sug Chung*, “Ultracompact resonator with high quality-factor based on a hybrid grating structure,” Optics Express 23(11), 14913-14921 (May 29, 2015). [link]
  • Gyeong Cheol Park, Weiqi Xue, Alireza Taghizadeh, Elezaveta Semenova, Kresten Yvind, Jesper Mørk, and Il-Sug Chung*, “Hybrid vertical-cavity laser with lateral emission into a silicon waveguide,” Laser and Photonics Reviews 9(3), L11-L15 (Apr 13, 2015). World 2nd demo of vertical-cavity laser laterally emitting into a silicon waveguide (IF: 8.529). [link]


  • Alireza Taghizadeh, Gyeong Cheol Park, Jesper Mørk, and Il-Sug Chung*, “Hybrid grating reflector with high reflectivity and broad bandwidth,” Optics Express 22(18), 21175-21184 (Aug 25, 2014). [link]
  • Alexandra Lupi, Il-Sug Chung, and Kresten Yvind*, “Electrical injection schemes for nanolasers,” IEEE Photonic. Tech. L. 26(4), 330-333 (Dec 3, 2014). [link]
  • Thor Ansbæk, Il-Sug Chung, Elizaveta S. Semenova, Ole Hansen and Kresten Yvind*, “Resonant MEMS tunable VCSEL,” IEEE J. Sel. Top. Quant. Electron. 19(4) 1702306 (Jul/Aug, 2013). [link]
  • Kazuhiro Ikeda*, Kazuma Takeuchi, Kentaro Takayose, Il-Sug Chung, Jesper Mørk, and Hitoshi Kawaguchi, “A polarization independent high index contrast grating and its fabrication tolerances,” Appl. optics 52(5), 1049-1053 (Feb 8, 2013). [link]
  • Thor Ansbæk, Il-Sug Chung, Elizaveta S. Semenova and Kresten Yvind*, “1060 nm tunable monolithic high index contrast subwavelength grating vertical-cavity surface-emitting laser,” IEEE Photonic. Tech. L. 25(4) 365-367 (Dec 21, 2012). [link]
  • Thor Ansbæk, Claus H. Nielsen, Søren Dohn, David Larsson, Il-Sug Chung, and Kresten Yvind,* “Vertical-cavity surface-emitting laser vapor sensor using swelling polymer reflection modulation,” Applied Physics Letters 101(14) 143505 (Oct 3, 2012). [link]
  • Luca Carletti, Radu Malureanu, Jesper Mørk, and Il-Sug Chung* “High-index-contrast grating reflector with beam steering ability for the transmitted beam,” Optics Express 19(23), 23567-23572 (Nov 4, 2011). [link]
  • Il-Sug Chung* and Jesper Mørk, “Silicon-photonics light source realized by III-V/Si-grating-mirror laser,” Applied Physics Letters. 97(15), 151113 (Oct 15, 2010). [link]
  • Il-Sug Chung*, Vladmir Iakovlev, Alexi Sirbu, Alexandru Mereuta, Andrei Caliman, Eli Kapon, and Jesper Mørk, “Broadband MEMS-tunable high-index-contrast subwavelength grating long-wavelength VCSEL,” IEEE Journal of Quantum Electronics 46, 1245-1253 (Sep 1, 2010). [link]
  • Maciej Dems*, Il-Sug Chung, Péter Nyakas, Svend Bischoff, and Krassimir Panajotov, “Numerical methods for modeling photonic crystal VCSELs,” Optics Express 18, 16042-16054 (July 14, 2010). [link]
  • David Larsson*, Kresten Yvind, Il-Sug Chung, Jørn Märcher Hvam, “Optimization of VCSELs for self-mixing sensing,” IEEE Photonics Technology Letters 22, 667-669 (May 15, 2010). [link]
  • Il-Sug Chung*, Pierluigi Debernardi, Yong Tak Lee, and Jesper Mørk, “Transverse-mode-selectable microlens vertical-cavity surface-emitting laser,” Optics Express 18, 4138-4147 (Mar 1, 2010). [link]
  • Il-Sug Chung*, Jesper Mørk, Philippe Gilet, and Alexei Chelnokov, “Subwavelength grating-mirror VCSEL with a thin oxide gap,” IEEE Photonic Technology Letters 20, 105-107 (Jan 15, 2008). [link]
  • Muhsen Aljada, Kamal E. Alameh, Yong Tak Lee, and Il-Sug Chung, “High speed (2.5 Gbps) reconfigurable inter-chip optical interconnects using opto-VLSI processors,” Optics Express 14, 6823-6836, (Jul 16, 2006). [link]
  • Il-Sug Chung and Yong Tak Lee*, “A method to tune the cavity-mode wavelength of resonant cavity-enhanced photodetectors for bidirectional optical interconnects,” IEEE Photonics Technology Letters 18(1), 46-48, (Jan 1, 2006). [link]
  • Il-Sug Chung, Yong Tak Lee*, Jae-Eun Kim, and Hae Yong Park, “Effect of outermost layers on resonant cavity enhanced devices,” Journal of Applied Physics, 96, 2423-2427, (Sep 1, 2004). [link]