Dr. Arash Rahimi-Iman is a lecturer and young group leader at the Philipps-Universität Marburg, Germany. He received his Ph.D. from the Faculty of Physics at the University of Würzburg, Germany, in 2013, where he worked on the development and demonstration of an electrically-pumped polariton laser. Currently, he is a principal investigator of several projects in the field of semiconductor lasers, two-dimensional materials and polariton physics at the Department of Physics and the Materials Sciences Center in Marburg. The focus of his work is on optical spectroscopy of nanostructured systems consisting of quantum wells, quantum dots, or novel semiconductor materials and on the development and study of semiconductor lasers. During the last decade, he has authored and co-authored over 100 publications in various science journals, frequently presented at international conferences, and has refereed articles for renowned publishers. In addition, he has acted as a visiting lecturer andsymposium co-organizer at the Zhejiang University, China. Furthermore, Dr. Rahimi-Iman supports the academic endeavours in Marburg as a member of the Steering Committee of the Materials Science Center, as well as of the Steering Committee of the Marburg Research Academy, and as a Faculty Board member of the Physics Department in Marburg.

• Introduction.- Review of Polariton BEC: From BEC to Polariton Condensates.- Fundamentals of Polariton Physics.- Structure and Technology.- Fundamental Spectroscopic Techniques.- Optically Excited Polariton Condensates.- Polaritons in External Fields.- Polariton Traps.- Polariton LEDs.- Polariton Laserdiodes.

Dr. Arash Rahimi-Iman is a lecturer and young group leader at the Philipps-Universität Marburg, Germany. He received his Ph.D. from the Faculty of Physics at the University of Würzburg, Germany, in 2013, where he worked on the development and demonstration of an electrically-pumped polariton laser. Currently, he is a principal investigator of several projects in the field of semiconductor lasers, two-dimensional materials and polariton physics at the Department of Physics and the Materials Sciences Center in Marburg. The focus of his work is on optical spectroscopy of nanostructured systems consisting of quantum wells, quantum dots, or novel semiconductor materials and on the development and study of semiconductor lasers. During the last decade, he has authored and co-authored over 100 publications in various science journals, frequently presented at international conferences, and has refereed articles for renowned publishers. In addition, he has acted as a visiting lecturer andsymposium co-organizer at the Zhejiang University, China. Furthermore, Dr. Rahimi-Iman supports the academic endeavours in Marburg as a member of the Steering Committee of the Materials Science Center, as well as of the Steering Committee of the Marburg Research Academy, and as a Faculty Board member of the Physics Department in Marburg.

• Introduction.- Review of Polariton BEC: From BEC to Polariton Condensates.- Fundamentals of Polariton Physics.- Structure and Technology.- Fundamental Spectroscopic Techniques.- Optically Excited Polariton Condensates.- Polaritons in External Fields.- Polariton Traps.- Polariton LEDs.- Polariton Laserdiodes.

Dr. Arash Rahimi-Iman is a lecturer and young group leader at the Philipps-Universität Marburg, Germany. He received his Ph.D. from the Faculty of Physics at the University of Würzburg, Germany, in 2013, where he worked on the development and demonstration of an electrically-pumped polariton laser. Currently, he is a principal investigator of several projects in the field of semiconductor lasers, two-dimensional materials and polariton physics at the Department of Physics and the Materials Sciences Center in Marburg. The focus of his work is on optical spectroscopy of nanostructured systems consisting of quantum wells, quantum dots, or novel semiconductor materials and on the development and study of semiconductor lasers. During the last decade, he has authored and co-authored over 100 publications in various science journals, frequently presented at international conferences, and has refereed articles for renowned publishers. In addition, he has acted as a visiting lecturer andsymposium co-organizer at the Zhejiang University, China. Furthermore, Dr. Rahimi-Iman supports the academic endeavours in Marburg as a member of the Steering Committee of the Materials Science Center, as well as of the Steering Committee of the Marburg Research Academy, and as a Faculty Board member of the Physics Department in Marburg.

• Introduction.- Review of Polariton BEC: From BEC to Polariton Condensates.- Fundamentals of Polariton Physics.- Structure and Technology.- Fundamental Spectroscopic Techniques.- Optically Excited Polariton Condensates.- Polaritons in External Fields.- Polariton Traps.- Polariton LEDs.- Polariton Laserdiodes.