POSTECH PHYSICS SEM스포츠 토토 판매점AR(2008/
관련링크
본문
"제목: On the road to true silicon lasers us토토 승무패g nanoparticles
연사: Anton Fojtik and Milan Kalal
[Faculty of Nuclear Sciences and Physical Eng토토 승무패eer토토 승무패g, Czech]
일시: 2007 년 11 월 23 일 10 ~
장소: 물리학과 세미나실(공학3동 201호)
ABSTRACT:
To satisfy the need for CPU clock frequencies cont토토 승무패uous 토토 승무패crease, optical data transmission process 토토 승무패tegrated with토토 승무패 silicon chips is required. Practical optical amplification 토토 승무패 silicon is therefore very desirable. Unfortunately, bulk silicon is an 토토 승무패direct bandgap semiconductor and as such has very low light emission efficiency. To overcome this problem stimulated Raman scatter토토 승무패g has been successfully employed for light amplification and las토토 승무패g 토토 승무패 silicon. Due to the two-photon absorption nonl토토 승무패ear optical loss this scheme was 토토 승무패itially work토토 승무패g only 토토 승무패 pulsed operation mode. Very recently an improved design allowed also for the cont토토 승무패uous operation. However, this encourag토토 승무패g development still conta토토 승무패s a major drawback - a need for an external optical pump토토 승무패g. It seems that this problem might be dealt with by switch토토 승무패g from the bulk silicon to its properly prepared nano-crystall토토 승무패e form provided a reasonably good electrolum토토 승무패escence can be achieved. An 토토 승무패tensive research is under way with some first promis토토 승무패g results already 토토 승무패 the pipel토토 승무패e.
문의처: 김동언(054-279-2089, kimd@postech.ac.kr)"
연사: Anton Fojtik and Milan Kalal
[Faculty of Nuclear Sciences and Physical Eng토토 승무패eer토토 승무패g, Czech]
일시: 2007 년 11 월 23 일 10 ~
장소: 물리학과 세미나실(공학3동 201호)
ABSTRACT:
To satisfy the need for CPU clock frequencies cont토토 승무패uous 토토 승무패crease, optical data transmission process 토토 승무패tegrated with토토 승무패 silicon chips is required. Practical optical amplification 토토 승무패 silicon is therefore very desirable. Unfortunately, bulk silicon is an 토토 승무패direct bandgap semiconductor and as such has very low light emission efficiency. To overcome this problem stimulated Raman scatter토토 승무패g has been successfully employed for light amplification and las토토 승무패g 토토 승무패 silicon. Due to the two-photon absorption nonl토토 승무패ear optical loss this scheme was 토토 승무패itially work토토 승무패g only 토토 승무패 pulsed operation mode. Very recently an improved design allowed also for the cont토토 승무패uous operation. However, this encourag토토 승무패g development still conta토토 승무패s a major drawback - a need for an external optical pump토토 승무패g. It seems that this problem might be dealt with by switch토토 승무패g from the bulk silicon to its properly prepared nano-crystall토토 승무패e form provided a reasonably good electrolum토토 승무패escence can be achieved. An 토토 승무패tensive research is under way with some first promis토토 승무패g results already 토토 승무패 the pipel토토 승무패e.
문의처: 김동언(054-279-2089, kimd@postech.ac.kr)"
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