Room Temperature Lasing from Semiconducting Single-Walled Carbon Nanotubes
- Northwestern Univ., Evanston, IL (United States). Center for Molecular Quantum Transduction; Argonne National Lab. (ANL), Lemont, IL (United States). Center for Nanoscale Materials
- Northwestern Univ., Evanston, IL (United States). Materials Research Center
- Argonne National Lab. (ANL), Lemont, IL (United States). Center for Nanoscale Materials
- Northwestern Univ., Evanston, IL (United States)
- Northwestern Univ., Evanston, IL (United States). Center for Molecular Quantum Transduction; Argonne National Lab. (ANL), Lemont, IL (United States). Center for Nanoscale Materials; Univ. of Chicago, IL (United States). Consortium for Advanced Science and Engineering
Miniaturized near-infrared semiconductor lasers that are able to generate coherent light with low energy consumption have widespread applications in fields such as optical interconnects, neuromorphic computing, and deep-tissue optogenetics. With optical transitions at near-infrared wavelengths, diameter-tunable electronic structures, and superlative optoelectronic properties, semiconducting single-walled carbon nanotubes (SWCNTs) are promising candidates for nanolaser applications. However, despite significant efforts in this direction and recent progress toward enhancing spontaneous emission from SWCNTs through Purcell effects, SWCNT-based excitonic lasers have not yet been demonstrated. Leveraging an optimized cavity-emitter integration scheme enabled by a self-assembly process, here we couple SWCNT emission to the whispering gallery modes supported by polymer microspheres, resulting in room temperature excitonic lasing with an average lasing threshold of 4.5 kW/cm2. The high photostability of SWCNTs allows stable lasing for prolonged duration with minimal degradation. Finally, this experimental realization of excitonic lasing from SWCNTs, combined with their versatile electronic and optical properties that can be further controlled by chemical modification, offers far-reaching opportunities for tunable near-infrared nanolasers that are applicable for optical signal processing, in vivo biosensing, and optoelectronic devices.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States). Center for Nanoscale Materials; Energy Frontier Research Centers (EFRC) (United States). Center for Molecular Quantum Transduction (CMQT)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division; National Science Foundation (NSF)
- Grant/Contract Number:
- AC02-06CH11357; SC0021314
- OSTI ID:
- 1969700
- Journal Information:
- ACS Nano, Journal Name: ACS Nano Journal Issue: 10 Vol. 16; ISSN 1936-0851
- Publisher:
- American Chemical Society (ACS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Low threshold lasing of bubble-containing glass microspheres by non-whispering gallery mode excitation over a wide wavelength range
Manipulation of exciton and photon lasing in a membrane-type ZnO microcavity