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초록
Triggered single-photon emission from a single CdTe quantum dot (QD) grown on Si(001) substrate is demonstrated for the first time. The emission wavelength of QDs can be tuned in a wide spectral range (more than 8 meV) using a focused laser beam. A nearly perfect single-photon emission from the exciton lines is preserved even after energy tuning. The lifetime is also measured before and after laser processing, and no appreciable change is observed.
키워드
Cadmium alloys; Cadmium compounds; Particle beams; Photons; cadmium derivative; cadmium telluride; quantum dot; silicon; tellurium; Before and after; Cdte; Emission wavelengths; Energy tuning; Exciton lines; Focused laser beams; Laser processing; Quantum dots; Si (001) substrates; Silicon substrates; Single-photon emissions; Single-photon sources; Wavelength-tunable; Wide spectral ranges; article; chemistry; conformation; crystallization; illumination; macromolecule; materials testing; methodology; nanotechnology; particle size; photon; surface property; Semiconductor quantum dots
- 제목
- Wavelength Tunable Triggered Single-Photon Source from a Single CdTe Quantum Dot on Silicon Substrate
- 저자
- Benyoucef, Mohamed; Lee, Hong Seok; Gabel, Juliane; Kim, Tae Whan; Park, Hong Lee; Rastelli, Armando; Schmidt, Oliver G.
- 발행일
- 2009-01
- 유형
- Article
- 저널명
- Nano Letters
- 권
- 9
- 호
- 1
- 페이지
- 304 ~ 307