Photoluminescence and optical studies of photodegradation in nonlinear optical organic chromophores

S. G. Raymond; G. V M Williams; My T T Do; S. Janssens; B. Lochocki; M. D. H. Bhuiyan; A. J. Kay

doi:10.1117/12.820835

Photoluminescence and optical studies of photodegradation in nonlinear optical organic chromophores

S. G. Raymond, G. V M Williams, My T T Do, S. Janssens, B. Lochocki, M. D. H. Bhuiyan, A. J. Kay

Biophotonics and Medical Imaging

Research output: Chapter in Book / Report / Conference proceeding › Conference contribution › Academic › peer-review

Abstract

Photostability measurements have been made on host-guest films containing amorphous polycarbonate and an organic chromophore with a high 2^nd order nonlinear optical figure of merit. We find that the rate of photodegradation strongly depends on the oxygen partial pressure. At very low oxygen partial pressures (1.4×10^-5 bar) the average number of photons required to photodegrade a chromophore is as high as 1×10 ⁹ at 655 nm. Encapsulation leads to an initial rapid decrease in the photodegradation rate due to the trapped oxygen and a gradual photodegradation where 2×10⁹ photons are required to photodegrade a chromophore. There is an anomalous increase and then decrease in the photoluminescence intensity during ultraviolet irradiation.

Original language	English
Title of host publication	Nonlinear Optics and Applications III
Volume	7354
DOIs	https://doi.org/10.1117/12.820835
Publication status	Published - 2009
Event	Nonlinear Optics and Applications III - Prague, Czech Republic Duration: 20 Apr 2009 → 22 Apr 2009

Conference

Conference	Nonlinear Optics and Applications III
Country/Territory	Czech Republic
City	Prague
Period	20/04/09 → 22/04/09

Keywords

Chromophore
Nonlinear optical
Photostability
Zwitterionic

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1117/12.820835

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title = "Photoluminescence and optical studies of photodegradation in nonlinear optical organic chromophores",

abstract = "Photostability measurements have been made on host-guest films containing amorphous polycarbonate and an organic chromophore with a high 2nd order nonlinear optical figure of merit. We find that the rate of photodegradation strongly depends on the oxygen partial pressure. At very low oxygen partial pressures (1.4×10-5 bar) the average number of photons required to photodegrade a chromophore is as high as 1×10 9 at 655 nm. Encapsulation leads to an initial rapid decrease in the photodegradation rate due to the trapped oxygen and a gradual photodegradation where 2×109 photons are required to photodegrade a chromophore. There is an anomalous increase and then decrease in the photoluminescence intensity during ultraviolet irradiation.",

keywords = "Chromophore, Nonlinear optical, Photostability, Zwitterionic",

author = "Raymond, {S. G.} and Williams, {G. V M} and Do, {My T T} and S. Janssens and B. Lochocki and Bhuiyan, {M. D. H.} and Kay, {A. J.}",

year = "2009",

doi = "10.1117/12.820835",

language = "English",

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note = "Nonlinear Optics and Applications III ; Conference date: 20-04-2009 Through 22-04-2009",

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TY - GEN

T1 - Photoluminescence and optical studies of photodegradation in nonlinear optical organic chromophores

AU - Raymond, S. G.

AU - Williams, G. V M

AU - Do, My T T

AU - Janssens, S.

AU - Lochocki, B.

AU - Bhuiyan, M. D. H.

AU - Kay, A. J.

PY - 2009

Y1 - 2009

N2 - Photostability measurements have been made on host-guest films containing amorphous polycarbonate and an organic chromophore with a high 2nd order nonlinear optical figure of merit. We find that the rate of photodegradation strongly depends on the oxygen partial pressure. At very low oxygen partial pressures (1.4×10-5 bar) the average number of photons required to photodegrade a chromophore is as high as 1×10 9 at 655 nm. Encapsulation leads to an initial rapid decrease in the photodegradation rate due to the trapped oxygen and a gradual photodegradation where 2×109 photons are required to photodegrade a chromophore. There is an anomalous increase and then decrease in the photoluminescence intensity during ultraviolet irradiation.

AB - Photostability measurements have been made on host-guest films containing amorphous polycarbonate and an organic chromophore with a high 2nd order nonlinear optical figure of merit. We find that the rate of photodegradation strongly depends on the oxygen partial pressure. At very low oxygen partial pressures (1.4×10-5 bar) the average number of photons required to photodegrade a chromophore is as high as 1×10 9 at 655 nm. Encapsulation leads to an initial rapid decrease in the photodegradation rate due to the trapped oxygen and a gradual photodegradation where 2×109 photons are required to photodegrade a chromophore. There is an anomalous increase and then decrease in the photoluminescence intensity during ultraviolet irradiation.

KW - Chromophore

KW - Nonlinear optical

KW - Photostability

KW - Zwitterionic

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DO - 10.1117/12.820835

M3 - Conference contribution

AN - SCOPUS:69949136087

SN - 9780819476289

VL - 7354

BT - Nonlinear Optics and Applications III

T2 - Nonlinear Optics and Applications III

Y2 - 20 April 2009 through 22 April 2009

ER -

Photoluminescence and optical studies of photodegradation in nonlinear optical organic chromophores

Abstract

Conference

Keywords

UN SDGs

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