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dc.contributor.authorWan Ahmad Kamil, Wan Maryam
dc.contributor.authorShakfa, Mohammad Khaled
dc.contributor.authorNordin, Muhammad Nuri
dc.contributor.authorPriante,Davide
dc.date.accessioned2019-03-11T07:13:27Z
dc.date.available2019-03-11T07:13:27Z
dc.date.issued2018-05-09
dc.identifier.citationWan Ahmad Kamil WM, Shakfa MK, Nordin MN, Priante D (2018) Lasing from ZnO nanorods on ITO-coated substrates. Semiconductor Lasers and Laser Dynamics VIII. Available: http://dx.doi.org/10.1117/12.2307131.
dc.identifier.doi10.1117/12.2307131
dc.identifier.urihttp://hdl.handle.net/10754/631520
dc.description.abstractLasing was observed from ZnO nanorods prepared by a simple method of chemical bath deposition (CBD) on ITOcoated glass substrates. The X-ray diffraction pattern showed a dominant peak for (002) plane typical for good crystalline quality of ZnO grown in the z-direction with a wurtzite structure. Continuous-wave photoluminescence (PL) spectra revealed a peak centered at 380 nm corresponding to the band gap of ZnO. Under pulsed optical pumping, lasing was observed above the nominal PL peak, initially for one mode at 384 nm. Two additional modes at 386 nm and 390 nm was observed when the pumping power is further increased. Threshold was achieved at 0.7 μJ which was 10 times smaller than that reported for powder-based random lasers. In addition, gain pinning was also observed for the dominant mode and the additional two modes appeared upon onset of this gain pining behavior.
dc.description.sponsorshipThe work is partially funded by Universiti Sains Malaysia short term grant: 304/PFIZIK/6312155 and Peruntukan Tabung Persidangan Luar Negara (TPLN) Universiti Sains Malaysia: 302/JPNP/321001. We also acknowledge Prof BS Ooi for financially supporting part of the work.
dc.publisherSPIE-Intl Soc Optical Eng
dc.relation.urlhttps://www.spiedigitallibrary.org/conference-proceedings-of-spie/10682/2307131/Lasing-from-ZnO-nanorods-on-ITO-coated-substrates/10.1117/12.2307131.full
dc.rightsArchived with thanks to Semiconductor Lasers and Laser Dynamics VIII
dc.subjectchemical bath deposition
dc.subjectlaser mode switching
dc.subjectRandom lasing
dc.subjectZnO vertical nanorods
dc.titleLasing from ZnO nanorods on ITO-coated substrates
dc.typeConference Paper
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentPhotonics Laboratory
dc.identifier.journalSemiconductor Lasers and Laser Dynamics VIII
dc.conference.date2018-04-23 to 2018-04-26
dc.conference.nameSemiconductor Lasers and Laser Dynamics VIII 2018
dc.conference.locationStrasbourg, FRA
dc.eprint.versionPublisher's Version/PDF
dc.contributor.institutionSchool of Physics, Universiti Sains Malaysia, Penang, 11800, , Malaysia
kaust.personShakfa, Mohammad Khaled
kaust.personNordin, Muhammad Nuri
refterms.dateFOA2019-03-12T12:33:02Z


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