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Optics into Primary School

On Dec. 17th 2015, the OSA student chapter at Zhejiang University organized a communicating activity with teachers and students of Chaoshan Centre Primary School located in the suburb of Yuhang District, Hangzhou,China, aiming to warm them up in the winter and arouse their interest in science. At the same time, we gave them an introduction of some basic optical knowledge. Twenty of our members took part in it.

The class began at 9:30 a.m. There were about 75 students attending our activity.


                                   (the class is in session

From morning to the afternoon, three lectures were reported in the class focusing on two different topics. One of the topics was to teach them some optical phenomena and the other one focused on the psychological health, including teaching them to firm in spirit and try their best to work hard.

During the first class, Weixi Liu and Huifang Chen, members of our OSA student chapter, gave them a class about the first topic mentioned above. They explained some basic optical phenomena to them, such as pin-hole imaging and mirage. They tried to ask more questions to make all of the students participate in the class. Most of the students raised their hands and answered these questions perfectly. At last, Jiang Li, the vice president of OSA student chapter at Zhejiang University; Jingye Chen, Jing Jia and Jingguang Tong, officers of our chapter, guided them to do some demonstrative experiment of optics using optical suitcase, and the students were excited to learn a lot from the interesting phenomena. To our surprise, one of the students found the explanation of polarization experiment in the class. All of the students were immersed in the interesting experiment. We gave them pieces of polarizers as a keepsake after class.



(Two of our members were explaining the optical phenomena)


(One of our members were guiding the kids to use polarizers)

As regards the second topic in this activity, members from Institute of Optical Inertia, the joint organizer of this activity, gave these students a psychological training lecture about dreams. When asked what dreams they have, these students spoke out their dreams confirmedly. One student stood up firstly, and said, “I want to study optics in the future.” What a surprise! We were so happy to hear this voice coming from a little boy. Finally, we told them an inspiring story of an Australian person, Nick Vujicic, to encourage them and build up their confidence in life and study.

Through the whole activity, the students had expanded their horizons, particularly in the optics science. They were highly encouraged to have a dream and work hard, and were taught methods to solve the problems and overcome the problems they might meet in the future. Our members established the contact with the students, so that the students could get help after this activity. We are looking forward to cooperating with the teachers and students next time.


(The group photos of the members of OSA and joint organizers with the kids)

Happily and actively, students from Chaoshan Central Primary School participated in the activity. We were expecting to talk and share with them next time.


(Scene of Chaoshan Central Primary School and our members)


Article by Jingye Chen (

Photos by Jiang Li (

Jing Jia (




Dr. Liang’s Lecture – Si Photonics for Data Centers and Beyond

Dr. Liang’s Lecture – Si Photonics for Data Centers and Beyond

– OSA Traveling Lecture at student chapter at Zhejiang University

On Nov.  2015, OSA student chapter at Zhejiang University was honored to invite  Di Liang, a research scientist at Hewlett Packard Labs, to have a friendly visit to our Centre of Optical and Electromagnetic Research through the OSA traveling lecture program. At 9:30 a.m., Dr. Liang gave a remarkable lecture entitled “Si Photonics for Data Centers and Beyond”. Members in our student chapter together with the researchers here were present at the seminar. Through the Traveling Lecture, we all benefited a lot from the academic research as well as the industry development.


(Dr. Liang from Hewlett Packard Labs is beginning his report)

To start with the seminar, Hao Wu, president of our student chapter, briefly introduced the research experience and outstanding achievements of Dr. Liang. Afterwards, Dr. Liang gave a detailed talk about the work on Si photonics interconnects for HP data centers. The overall effort and the roadmap of Hewlett Packard Labs on Si photonics were reviewed. Key components in the Si photonics link, including hybrid microring lasers, Si microring modulators, hybrid Si photodectors and SiGe APDs, were introduced and discussed in details. To sum up, Dr. Liang generalized not only technical obstacles but also market outlook about Si photonics interconnects.


(A group photo of discussion during FAQs section:Dr. Liang is sharing his opinions)

In the FAQs section, Prof. Shiming Gao and Assoc. Prof. Yaocheng Shi discussed with Dr. Liang about the most promising bonding technology with silicon. Futher in-depth discussions in free bonding were followed. Members in our student chapter took an active part in this section and concerned about the commercial applications and development. Dr. Liang discussed it according to current nanofabrication and hybrid bonding technology from the perspective of a research scientist at HP Labs.


(A group photo of Dr. Liang, Assoc. Prof. Shi and part of the attendees in our student chapter)

The Traveling Lecture from OSA did broaden our horizon and advance us to higher research level. Our student chapter are looking forward to the next Traveling Lecture.

Article by Jing Jia (

Photos by Xiaoman Shen ( and Jingwei Li (