Optical dephasing in doped polyisobutylene: research by means of incoherent photon echo under high pressure

K. R. Karimullin ; Yu. G. Vainer ; I. Yu. Eremchev ; A. V. Naumov ; V. V. Samartsev

Učënye zapiski Kazanskogo universiteta. Seriâ Fiziko-matematičeskie nauki, Uchenye Zapiski Kazanskogo Universiteta. Seriya Fiziko-Matematicheskie Nauki, Tome 152 (2010) no. 2, pp. 98-110

Résumé

The method of probe spectroscopy of amorphous media is developed in the mode of incoherent photon echo, which makes it possible to study the processes of optical dephasing at high (up to room) temperatures and under high hydrostatic pressure. The incoherent photon echo spectrometer and the original experimental instrumentation for control and measuring of external hydrostatic pressure during the investigation of disordered impurity media are described. Optical dephasing of impurity tetra-tert-butyl-tyrelene (TBT) molecules embedded into the matrix of polyisobutylene (PIB) at high temperatures (77–300 K) is analyzed. Results of the investigation of the spectral dynamics of chromophore molecules under high pressure are provided.

Détail

Keywords: amorphous media, optical dephasing, homogeneous line-width, four-wave mixing, incoherent photon echo, broadband laser, high pressure chamber, polyisobutylene, tetra-tert-butyl-terylene.
Mots-clés : luminescence microscope, chromophore molecule

Bibliographie

[1] Phillips W. A., Amorphous solids. Low-temperature properties, Springer-Verlag, Berlin, 1981, 167 pp.

[2] Anderson P. W., Halperin B. I., Varma C. M., “Anomalous low-temperature thermal properties of glasses and spin glasses”, Phil. Mag., 25:1 (1972), 1–9 | DOI

[3] Phillips W. A., “Tunneling states in amorphous solids”, J. Low Temp. Phys., 7:3–4 (1972), 351–360 | DOI

[4] Freeman J. J., Anderson A. C., “Thermal conductivity of amorphous solids”, Phys. Rev. B, 34:8 (1986), 5684–5690 | DOI

[5] Personov R. I., Al'shits E. I., Bykovskaya L. A., “The effect of fine structure appearance in laser-excited fluorescence spectra of organic compounds in solid solutions”, Opt. Commun., 6:2 (1972), 169–173 | DOI

[6] Kharlamov B. M., Personov R. I., Bykovskaya L. A., “Stable “gap” in absorption spectra of solid solutions of organic molecules by laser irradiation”, Opt. Commun., 12:2 (1974), 191–193 | DOI

[7] Kopvillem U. Kh., Nagibarov V. R., “Svetovoe ekho na paramagnitnykh kristallakh”, Fizika metallov i metallovedenie, 15:2 (1963), 313–315

[8] Kurnit N. A., Hartmann S. R., Abella I. D., “Observation of a photon echo”, Phys. Rev. Lett., 13:19 (1964), 567–570 | DOI

[9] McIntire M. J., Yamaguchi M., Kol'chenko M., Vainer Yu. G., Chronister E. L., “High-pressure studies of optical dephasing in polymer glasses”, J. Phys. Chem. B, 110:1 (2006), 227–233 | DOI

[10] Weiner A. M., Ippen E. P., “Novel transient scattering technique for femtosecond dephasing measurements”, Opt. Lett., 9:2 (1984), 53–55 | DOI

[11] Morita N., Yajima T., “Ultrahigh-time-resolution coherent spectroscopy with incoherent light”, Phys. Rev. A, 30:5 (1984), 2525–2536 | DOI

[12] Kobayashi T., Terasaki A., Hattori T., Kurokawa K., “Application of incoherent light for the study of femtosecond-picosecond relaxation in condenced phase”, Appl. Phys. B, 47:2 (1988), 107–125 | DOI

[13] Zuikov V. A., Karimullin K. R., Mitrofanova T. G., Samartsev V. V., Shegeda A. M., Shkalikov A. V., “Nekogerentnoe fotonnoe ekho v spektroskopii primesnykh opticheski plotnykh sred”, Izv. RAN. Ser. fiz., 72:12 (2008), 67–72

[14] Karimullin K. R., Vainer Yu. G., Erëmchev I. Yu., Naumov A. V., Samartsev V. V., “Sverkhbystraya opticheskaya defazirovka v primesnom polimetilmetakrilate: issledovaniya metodom nekogerentnogo fotonnogo ekha s femtosekundnym vremennym razresheniem”, Uchen. zap. Kazan. un-ta. Ser. fiz.-matem. nauki, 150, no. 2, 2008, 148–159

[15] Vainer Yu. G., Gruzdev N. V., “Dinamika organicheskikh amorfnykh sred pri nizkikh temperaturakh: Issledovaniya rezorufina v d- i d6-etanole pri 1.7–35 K metodom nekogerentnogo fotonnogo ekha. I. Eksperiment. Osnovnye rezultaty”, Optika i spektroskopiya, 76:2 (1994), 252–258

[16] Guttler F., Irngartinger T., Plakhotnik T., Renn A., Wild U. P., “Fluorescence microscopy of single molecules”, Chem. Phys. Lett., 217:4 (1994), 393–397 | DOI

[17] Karimullin K. R., Vainer Yu. G., Erëmchev I. Yu., Naumov A. V., “Izmerenie davleniya metodom mikrospektroskopii fluorestsentsii rubinovykh zondov”, Fizika i primenenie mikrovoln, Sb. tr., ch. 4, M., 2009, 51–53

[18] Mao H. K., Bell P. M., Shaner J. W., Steinberg D. J., “Specific volume measurements of Cu, Mo, Pd, and Ag and calibration of the ruby $R_1$ fluorescence pressure gauge from 0,06 to 1 Mbar”, J. Appl. Phys., 49:6 (1978), 3276–3281 | DOI