| No. 143 Vol.37 No.4(2021)CONTENTSPreface 1 ●Conventional and New Diamond Related Materials ――――――――――――――――― Satoru Kukino 
 Future Prospects 3 Future Prospects of Diamond-Like Carbon as Biomaterial ――――――――――――――― Kenji Hirakuri 
 Scientific Tutorials 8 Mechanical Damage-free Surface Planarization of Diamond Wafers ――― Tsubasa Matsumoto, Kazuto Sakauchi, Yuto Nakamura, Masatsugu Nagai, Taira Tabakoya, Xufang Zhang, Satoshi Yamasaki, Christoph E. Nebel, Takao Inokuma and Norio Tokuda 
 Technical Tutorials 12 Graphene Infrared Sensors ―――――――― Shinpei Ogawa, Masaaki Shimatani, Shoichiro Fukushima 
 Topics 16 Highly Conductive Layers Formation on Singlecrystalline Diamond ―――――――――――――――――――――― Eslam Abubakr, Hiroshi Ikenoue and Tsuyoshi Yoshitake 18 Laser Pulses That Can Select Carbon Nanotubes with Diameters Less than 1 nm ――――――――――――――――――――――――――――――――――――――――― Yoshiyuki Miyamoto 20 Mechanical Properties of Multi-walled Carbon Nanotube Yarns Cross-linked by Defluorination ―――――――――――――――――――――――――――――――――――――――――――― Yoshinori Sato 24 The ta-C:Ag Thin Film with Superior Mechanical, Biocompatible and Antimicrobial Properties And Its Power Device Application ――― Yuki Takahashi, Masaki Moriyama, Shuhei Tanaka and Koichiro Iwahori 
 Seminer and Workshop Reports 27 The 1st Seminar and Workshop Report 2021 ――――――――――― Masahiro Yano and Atsushi Hirata 
 Conference Reports 28 The 82nd JSAP Autumn Meeting 2021 ―――――――――――――― Hiromitsu Kato and Yasuharu Ohgoe 30 ICDCM 2021(31st International Conference on Diamond and Carbon Materials) ――――――――――――――――――――――― Hitoshi Ishiwata, Hisao Miyazaki and Masahiko Ogura 32 2021 International Conference on Solid State Devices and Materials ――――――― Shinya Ohmagari 32 The 144th Conference of the Surface Finishing Society of Japan ――――――――― Takako Nakamura 
 Fundamental Lecture 34 Optical Properties of Diamond (1)Fundamental aBsorption Across the inDirect Energy Gap ――――――――――――――――――――――――― Nobuko Naka, Kazuki Konishi, Ikuko Akimoto 
 My LAB 38 Tokyo Institute of Technology, Laboratory for Future Interdisciplinary Research of Science and Technology, Materials Processing Science Research Core ――――――――――――――― Yuki Hirata 
 Book Review 40 CVD Diamond Complete for Precision Machining ――――――――――――――――――――― Naoto Ohtake 
 | 
 
            