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Role of host liquid in optical limiting in ink suspensions

✍ Scribed by S.K Tiwari; M.P Joshi; M Laghate; S.C Mehendale

Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
180 KB
Volume
34
Category
Article
ISSN
0030-3992

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✦ Synopsis

Optical limiting of 532 nm, 15 ns duration laser pulses in suspensions made by diluting black ink in water, ethanol, and isopropanol was studied and the strength of limiting was found to be quite di erent for the three suspensions. Microscopic investigations showed that the sizes of suspended aggregates were di erent for di erent host liquids. The suspension with largest aggregate was found to exhibit strongest optical limiting. Our work thus shows that host liquid in uences optical limiting in suspensions not only through its thermodynamic properties but also by determining the particle size which has a strong e ect on limiting strength.

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