Phonon-driven resonantly enhanced polariton luminescence in organic microcavities

N. Somaschi; L. Mouchliadis; D. Coles; I. E. Perakis; D. G. Lidzey; P. G. Lagoudakis; P. G. Savvidis

doi:10.1117/12.906680

20 February 2012 Phonon-driven resonantly enhanced polariton luminescence in organic microcavities

N. Somaschi, L. Mouchliadis, D. Coles, I. E. Perakis, D. G. Lidzey, P. G. Lagoudakis, P. G. Savvidis

Proceedings Volume 8260, Ultrafast Phenomena and Nanophotonics XVI; 82600Q (2012) https://doi.org/10.1117/12.906680
Event: SPIE OPTO, 2012, San Francisco, California, United States

Abstract

Characteristic low-threshold polariton lasing of organic and inorganic microcavity systems can only be achieved with efficient population of the lower polariton ground state. In this regard, the key role undertaken by vibronic replicas and molecular phonon it has been shown experimentally and theoretically predicted by various works. We report here, direct observation of critical enhancement of polariton population density in strongly coupled J-aggregate based organic microcavities. The process highlighted in our study is manifested by discrete maxima of the angular-resolved photoluminescence intensity and interpreted by the mediation of molecular vibrations quanta characteristic of the active material. By measuring the reduced time scale of vibrations driven relaxation dynamics, manifested by sub 100fs buildup times, we emphasized the efficiency of the mechanism to overcome losses channel in disordered J-aggregate systems. Hence, the realization of amplified polariton population with improved relaxation rates paves the way for the observation of low threshold lasing, primary step for developing room temperature organic laser sources and ultra-fast optoelectronic devices with less fabrication complexity than their crystalline counterparts.

Citation Download Citation

N. Somaschi, L. Mouchliadis, D. Coles, I. E. Perakis, D. G. Lidzey, P. G. Lagoudakis, and P. G. Savvidis "Phonon-driven resonantly enhanced polariton luminescence in organic microcavities", Proc. SPIE 8260, Ultrafast Phenomena and Nanophotonics XVI, 82600Q (20 February 2012); https://doi.org/10.1117/12.906680

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available