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Tensile strain of germanium micro-disks on freestanding SiO2 beams

Tensile strain of germanium micro-disks on freestanding SiO2 beams
Tensile strain of germanium micro-disks on freestanding SiO2 beams
Tensile strain is crucial to expect the direct recombination in germanium (Ge), towards monolithic light sources on silicon (Si). Freestanding beams of Ge are known to produce strong tensile strain, however, it is not trivial to construct a cavity in a freestanding structure. Here, we fabricated Ge micro-disks on freestanding oxide beams, and observed Whispering-Gallery-Modes (WGM) by photoluminescence. The tensile strain was larger in shorter beams, which is consistent with simulations.
Al-Attili, Abdelrahman
534a1c1f-3f8c-4a78-b71b-50c156e23373
Kako, Satoshi
f69c5167-7bf1-49de-bcf2-ce9257d77e4c
Husain, Muhammad
92db1f76-6760-4cf2-8e30-5d4a602fe15b
Gardes, Frederic
7a49fc6d-dade-4099-b016-c60737cb5bb2
Iwamoto, Satoshi
b2b6caf6-235f-4e92-b1a8-e15d09dd3e25
Arakawa, Yasuhiko
3000500d-1c3d-4d03-911c-b59c8b4f7c75
Saito, Shinichi
14a5d20b-055e-4f48-9dda-267e88bd3fdc
Al-Attili, Abdelrahman
534a1c1f-3f8c-4a78-b71b-50c156e23373
Kako, Satoshi
f69c5167-7bf1-49de-bcf2-ce9257d77e4c
Husain, Muhammad
92db1f76-6760-4cf2-8e30-5d4a602fe15b
Gardes, Frederic
7a49fc6d-dade-4099-b016-c60737cb5bb2
Iwamoto, Satoshi
b2b6caf6-235f-4e92-b1a8-e15d09dd3e25
Arakawa, Yasuhiko
3000500d-1c3d-4d03-911c-b59c8b4f7c75
Saito, Shinichi
14a5d20b-055e-4f48-9dda-267e88bd3fdc

Al-Attili, Abdelrahman, Kako, Satoshi, Husain, Muhammad, Gardes, Frederic, Iwamoto, Satoshi, Arakawa, Yasuhiko and Saito, Shinichi (2015) Tensile strain of germanium micro-disks on freestanding SiO2 beams. International Conference on Solid-State Devices and Materials (SSDM 2015), Japan. 27 - 29 Sep 2015. (In Press)

Record type: Conference or Workshop Item (Paper)

Abstract

Tensile strain is crucial to expect the direct recombination in germanium (Ge), towards monolithic light sources on silicon (Si). Freestanding beams of Ge are known to produce strong tensile strain, however, it is not trivial to construct a cavity in a freestanding structure. Here, we fabricated Ge micro-disks on freestanding oxide beams, and observed Whispering-Gallery-Modes (WGM) by photoluminescence. The tensile strain was larger in shorter beams, which is consistent with simulations.

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More information

Accepted/In Press date: 16 July 2015
Venue - Dates: International Conference on Solid-State Devices and Materials (SSDM 2015), Japan, 2015-09-27 - 2015-09-29
Organisations: Nanoelectronics and Nanotechnology

Identifiers

Local EPrints ID: 383892
URI: https://eprints.soton.ac.uk/id/eprint/383892
PURE UUID: b341f636-443d-455c-a2a0-0b6a81b5f07a
ORCID for Shinichi Saito: ORCID iD orcid.org/0000-0003-1539-1182

Catalogue record

Date deposited: 12 Jan 2016 15:00
Last modified: 06 Jun 2018 12:28

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