Spectral tuning of lasing emission from optofluidic droplet microlasers using optical stretching

Aas, M.; Jonáš, A.; Kiraz, A.; Ježek, Jan; Brzobohatý, Oto; Pilát, Zdeněk; Zemánek, Pavel

doi:https://dx.doi.org/10.1364/OE.21.021380

Number of the records: 1

Spectral tuning of lasing emission from optofluidic droplet microlasers using optical stretching

1.

SYSNO ASEP	0397688
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Spectral tuning of lasing emission from optofluidic droplet microlasers using optical stretching
Author(s)	Aas, M. (TR) Jonáš, A. (CZ) Kiraz, A. (TR) Ježek, Jan (UPT-D)_{RID, ORCID, SAI} Brzobohatý, Oto (UPT-D)_{RID, ORCID, SAI} Pilát, Zdeněk (UPT-D)_{RID, SAI, ORCID} Zemánek, Pavel (UPT-D)_{RID, SAI, ORCID}
Number of authors	7
Source Title	Optics Express. - : Optical Society of America - ISSN 1094-4087 Roč. 21, č. 18 (2013), s. 21380-21394
Number of pages	15 s.
Publication form	Print - P
Language	eng - English
Country	US - United States
Keywords	Microcavities ; Dye lasers ; Optical tweezers ; Optical manipulation ; Fluorescence, laser-induced
Subject RIV	BH - Optics, Masers, Lasers
R&D Projects	GPP205/11/P294 GA ČR - Czech Science Foundation (CSF)
	ED0017/01/01 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
	TA03010642 GA TA ČR - Technology Agency of the Czech Republic (TA ČR)
Institutional support	UPT-D - RVO:68081731
UT WOS	000324867100102
EID SCOPUS	84884586091
DOI	10.1364/OE.21.021380
Annotation	We introduce tunable optofluidic microlasers based on active optical resonant cavities formed by optically stretched, dye-doped emulsion droplets confined in a dual-beam optical trap. To achieve tunable dye lasing, optically pumped droplets of oil dispersed in water are stretched by light in the dual-beam trap. Subsequently, resonant path lengths of whispering gallery modes (WGMs) propagating in the droplet are modified, leading to shifts in the microlaser emission wavelengths. Using this technique, we present all-optical, almost reversible spectral tuning of the lasing WGMs and show that the direction of tuning depends on the position of the pump beam focus on the droplet. In addition, we study the effects of temperature changes on the spectral position of lasing WGMs and demonstrate that droplet heating leads to red-tuning of the droplet lasing wavelength.
Workplace	Institute of Scientific Instruments
Contact	Martina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178
Year of Publishing	2014

Number of the records: 1