| ชื่อเรื่อง | : | Surface-emitting red, green, and blue colloidal quantum dot distributed feedback lasers |
| นักวิจัย | : | Roh, Kwangdong , Dang, Cuong , Lee, Joonhee , Chen, Songtao , Steckel, Jonathan S. , Coe-Sullivan, Seth , Nurmikko, Arto |
| คำค้น | : | DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics |
| หน่วยงาน | : | Nanyang Technological University, Singapore |
| ผู้ร่วมงาน | : | - |
| ปีพิมพ์ | : | 2557 |
| อ้างอิง | : | Roh, K., Dang, C., Lee, J., Chen, S., Steckel, J. S., Coe-Sullivan, S., et al. (2014). Surface-emitting red, green, and blue colloidal quantum dot distributed feedback lasers. Optics Express, 22(15), 18800-18806. , 1094-4087 , http://hdl.handle.net/10220/20393 , http://dx.doi.org/10.1364/OE.22.018800 |
| ที่มา | : | - |
| ความเชี่ยวชาญ | : | - |
| ความสัมพันธ์ | : | Optics express |
| ขอบเขตของเนื้อหา | : | - |
| บทคัดย่อ/คำอธิบาย | : | We demonstrate surface emitting distributed feedback (DFB) lasers across the red, green, and blue from densely packed colloidal quantum dot (CQD) films. The solid CQD films were deposited on periodic grating patterns to enable 2nd-order DFB lasing action at mere 120, 280, and 330 μJ/cm2 of optical pumping energy densities for red, green, and blue DFB lasers, respectively. The lasers operated in single mode operation with less than 1 nm of full-width-half-maximum. We measured far-field patterns showing high degree of spatial beam coherence. Specifically, by taking advantage of single exciton optical gain regime from our engineered CQDs, we can significantly suppress the Auger recombination to reduce lasing threshold and achieve quasi-steady state, optically pumped operation. |
| บรรณานุกรม | : |
Roh, Kwangdong , Dang, Cuong , Lee, Joonhee , Chen, Songtao , Steckel, Jonathan S. , Coe-Sullivan, Seth , Nurmikko, Arto . (2557). Surface-emitting red, green, and blue colloidal quantum dot distributed feedback lasers.
กรุงเทพมหานคร : Nanyang Technological University, Singapore. Roh, Kwangdong , Dang, Cuong , Lee, Joonhee , Chen, Songtao , Steckel, Jonathan S. , Coe-Sullivan, Seth , Nurmikko, Arto . 2557. "Surface-emitting red, green, and blue colloidal quantum dot distributed feedback lasers".
กรุงเทพมหานคร : Nanyang Technological University, Singapore. Roh, Kwangdong , Dang, Cuong , Lee, Joonhee , Chen, Songtao , Steckel, Jonathan S. , Coe-Sullivan, Seth , Nurmikko, Arto . "Surface-emitting red, green, and blue colloidal quantum dot distributed feedback lasers."
กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2557. Print. Roh, Kwangdong , Dang, Cuong , Lee, Joonhee , Chen, Songtao , Steckel, Jonathan S. , Coe-Sullivan, Seth , Nurmikko, Arto . Surface-emitting red, green, and blue colloidal quantum dot distributed feedback lasers. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2557.
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