신소재공학과

Seminar

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Date 20181102


MSE Special Seminar

 

 ■ Title :  Silicon Photonics and Germanium 

 ■ Speaker : Dr. Sungbong Park (Intel Corporation)

 ■ Date and Time : 11/2 (Fri) 14:00~16:00 

 ■ Venue : Applied Engineering Building (W1-1) Seminar Room #4

 ■ Host : Prof. Kyung-Min Kim

 ■ Abstract :  “Silicon Photonics is a combination of two of the most important inventions of the 20th century; the silicon integrated circuit and the semiconductor laser” - Intel Silicon Photonics Product Division

Silicon is not viewed as a material for photonics or optoelectronics, compared to compound semiconductors because of lack of light emission or optical modulation which is attributed to its indirect band gap and very weak electro-optic effects. Therefore, “Silicon Photonics” would have sounded like an oxymoron before early 2000s, in which a group of researchers at Intel demonstrated the world-first GHz optical modulator and Raman laser based on silicon [1, 2]. Since then, there has been a tremendous amount of investigation and demonstration of silicon photonic components and integration targeting optical communication or sensing as well as offering lower cost and scalability with mature silicon CMOS technologies. To that end, photodetection at near-infrared (NIR, 1.3-1.6um) is a must. Now is Germanium to shine thanks to high absorption at NIR and integratability with CMOS fabrication lines. Although, achieving a good germanium epi quality is challenging due to 4.2% lattice mismatch between the two elements which inevitably produces dislocations and in turn increases dark current of photodetectors. That is where MATERIAL SCIENTISTS and ENGINEERS should come to the rescue. Nonetheless, many groups have demonstrated Ge photodiodes with acceptable dark current, responsivity close to the quantum limit and bandwidth of >50GHz.


List of Articles
No. Category Subject Author Date Views
Notice Regular 6/4 (Tue) Prof. SangBum Kim (Dept. of MSE, SNU) ADMINI 2019.05.31 477
Notice Regular 5/28 (Tue) Prof. Seok Su Sohn (Dept. of MSE, Korea Univ.) ADMINI 2019.05.24 446
Notice Regular 5/21 (Tue) Emeritus Prof. Joong Keun Park (Dept. of MSE, KAIST) ADMINI 2019.05.17 454
Notice Regular 5/17 (Tue) Prof. Su-Hyun Gong (Dept. of Physics, Korea Univ.) ADMINI 2019.05.10 950
Notice Special 5/7 (Tue) Prof. Dr. -ing. Dierk Raabe (MPIE) ADMINI 2019.04.30 763
Notice Regular 4/30 (Tue) Prof. Min Hyuk Park (School of MSE, Pusan National Univ.) ADMINI 2019.04.25 547
Notice Regular 4/23 (Tue) Prof. Seungwu Han (Dept. of MSE, SNU) ADMINI 2019.04.19 308
278 Regular 11/6 (Tue) Prof. Dongchan Jang (KAIST NQE) ADMINI 2018.11.02 547
» Special 11/2 (Fri) Dr. Sungbong Park (Intel Corporation) ADMINI 2018.10.30 763
276 Regular 10/30 (Tue) Dr. Myung-Il Park (Korea Technology Finance Corporation) ADMINI 2018.10.26 374
275 Regular 10/23 (Tue) Dr. Sang-Soo Han (H&P International Patent & Law Office) ADMINI 2018.10.19 377
274 Regular 10/2 (Tue) Prof. Dohwan Kim (Hanyang Univ.) ADMINI 2018.10.01 530
273 Regular 9/18 (Tue) Prof. Seong Jun Kang (Kyung Hee Univ.) ADMINI 2018.09.17 621
272 Regular 9/11 (Tue) Dr. Byeongdu Lee (Argonne National Laboratory) ADMINI 2018.09.07 729
271 Regular 9/4 (Tue) Prof. Kibum Kang (Department of MSE, KAIST) ADMINI 2018.09.03 1238
270 Regular 8/28 (Tue) Prof. Kyung-Min Kim (Department of MSE, KAIST) ADMINI 2018.08.24 1047
269 Special 8/24 (Fri) Prof. Joel W. Ager III (UC Berkeley, Lawrence Berkeley National Laboratory) file ADMINI 2018.08.20 826
268 Special 8/23 (Thu) Prof. Jeehwan Kim (MIT, USA) file ADMINI 2018.08.20 1179
267 Special 8/23 (Thu) Prof. YANGUANG LI (Soochow University) file ADMINI 2018.08.20 397
266 Special 7/25 (Wed) Dr. Chang Sub Kim (Department of MSE, MIT) ADMINI 2018.07.24 656
265 Special 7/13 (Fri) Prof. Dong Ryeol Whang (Johannes Kepler University Linz, Austria) file ADMINI 2018.07.09 591
264 Regular 6/5 (Tue) Prof. Sunghwan Lee (Baylor University) ADMINI 2018.06.05 639
263 Regular 5/29 (Tue) Prof. Sang Ho Oh (Yonsei Univ. College of Medicine) ADMINI 2018.05.29 609
262 Regular 5/15 (Tue) Prof. Myung Gil Kim (Dept. of Chemistry, Chung-Ang Univ.) ADMINI 2018.05.15 850
261 Regular 5/8 (Tue) Prof. Ju-Young Kim (UNIST MSE) ADMINI 2018.05.09 742
260 Regular 5/1 (Tue) Prof. Duk-Yong Yoon (KAIST MSE) ADMINI 2018.04.30 1277
259 Regular 4/24 (Tue) Kyeong Ho Chang (CEO, Innox Advanced Materials) ADMINI 2018.04.23 764
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