Persistent spectral hole burning by simultaneous two-photon absorption

Drobizhev, Mikhail; Karotki, Aliaksandr; Rebane, Aleksander

doi:10.1016/s0009-2614(00)01459-7

Cited by 31 publications

(23 citation statements)

References 23 publications

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“…Absolute TPA cross sections were measured by comparing fluorescence intensity under OPE and TPE (see [15] for details). For sech temporal profile of excitation pulses and under the assumption that fluorescence quantum efficiency is the same for both modes of excitation, the two-photon cross section writes as follows: (1) Here, indexes 1 and 2 refer to the values measured under OPE and TPE, respectively, is the fluorescence signal recorded during time , is the molecule concentration (in molecule cm ), is the sample thickness (in cm), is the pulse duration (full width at half maximum in s), is the pulse repetition rate under TPE, is the average intensity (in W/cm ), is laser frequency (in hertz), and is the optical density of the sample at one-photon illumination wavelength.…”

Section: Methodsmentioning

confidence: 99%

Efficient singlet oxygen generation upon two-photon excitation of new porphyrin with enhanced nonlinear absorption

Karotki

Kruk

Drobizhev

et al. 2001

IEEE J. Select. Topics Quantum Electron.

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Section: Methodsmentioning

confidence: 99%

Efficient singlet oxygen generation upon two-photon excitation of new porphyrin with enhanced nonlinear absorption

Karotki

Kruk

Drobizhev

et al. 2001

IEEE J. Select. Topics Quantum Electron.

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“…In [61] a femtosecond interference effect created in a ultrafast two-pulse photon echo in dye-doped polymer films at low temperatures was used to demonstrate an ultrafast three-port all-optical logic «con-trolled NOT» gate (Taffoli gate).…”

Section: T T T T T Ttmentioning

confidence: 99%

Purely electronic zero-phonon line as the foundation stone for high-resolution matrix spectroscopy, single-impurity-molecule spectroscopy, and persistent spectral hole burning. Recent developments

Rebane

2003

Low Temperature Physics

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A few examples of recent progress in the study and applications of purely electronic zerophonon line (ZPL) and its offshoots are briefly considered: new experimental values of the narrowest ZPL; time-and-space-domain holography in the femtosecond domain, and the realization of a femtosecond Taffoli gate by it; single-impurity-molecule spectroscopy, its relation to single-photon interference and to the realization of quantum computing; the promises of quantum computing compared to what has already been done in holography. PACS: 33.70.JgThe purely electronic zero-phonon line (ZPL) is a remarkable feature of low-temperature spectra of the absorption and luminescence of quite a number of various impurity centers in various solid hosts (see [1][2][3][4][5] and references therein). ZPLs can be very narrow and have very high peak absorption cross sections. These valuable properties, as well as several other features, are in close correspondence with features of the Möss-bauer g-resonance line. Because of this correlation, originating from the symmetry of the harmonic oscillator Hamiltonian in coordinate and momenta [6], J.F. Gross called the ZPL the optical analog of the Mössbauer line [7], helping considerably to popularize optical ZPLs.I must note that two main features of the optical ZPL were pointed out in [8], five years before the first publication by Mössbauer [9]. That result of this early paper, however, was not given due attention.ZPLs, as sharp and intense features in the low-temperature spectra of some impurities in solids (without detailed explanation of their properties), were found and fruitfully studied experimentally years before the Mössbauer effect. ZPL widths of around 1 cm -1 were measured in the spectra of rare-earth impurity ions introduced in proper ionic single-crystal hosts and also ruby (see [10,11] and references therein). The new wave of theoretical studies brought the understanding that even the very narrow widths of around 1 cm -1 are essentially inhomogeneous widths [1,2,5,12,13]. It was predicted that for dipole-allowed transitions the homogeneous lines should be, at liquid helium temperatures, another 3-4 orders of magnitude narrower still, i.e., the homogeneous linewidth is 10 -3 --10 -4 cm -1 » 10-100 MHz (see [5,[12][13][14] and references therein), and even a few orders of magnitude narrower yet for forbidden ones. The theoretical point, later confirmed experimentally [12,14] was that the ZPL's homogeneous width, G hom (T), tends in the limit T ® 0 to the value determined by the lifetime of the excited electronic state.This theoretical prediction stimulated experimentalists to search for methods of how to eliminate or use the inhomogeneous broadening and to utilize the precious properties of ZPLs in the frequency domain.ZPL became the foundation stone for three novel fields of modern optics and spectroscopy [3,4,15]: (1) very high spectral resolution ZPL studies of atoms and molecules as impurities in low-temperature solids (very high spectral resolution matrix isolation spectrosco...

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“…The transition into the purely electronic state for H 2 DHP with a small two-photon absorption cross section (σ 2 ≤ 1 GM) is accompanied by a stronger absorption band into a vibronic state (σ 2 ~ 3 GM) (Fig. 12) [76]. Bands in two-photon absorption spectra of chlorophyll a also correspond to bands of onephoton absorption whereas the vibronic band is stronger, like for H 2 DHP [79].…”

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confidence: 95%

“…Twophoton absorption spectra in the visible range of 7,8-dihydroporphine (H 2 DHP) (chlorin) and chlorophyll a have the same shape as those of porphyrins [76,77]. The transition into the purely electronic state for H 2 DHP with a small two-photon absorption cross section (σ 2 ≤ 1 GM) is accompanied by a stronger absorption band into a vibronic state (σ 2 ~ 3 GM) (Fig.…”

mentioning

confidence: 98%

“…The effect on the two-photon absorption spectrum of hydrogenation of one of the pyrrole rings of the porphyrin macrocycle and conversion to the dihydro derivative was investigated for several compounds [5,[75][76][77][78]. Twophoton absorption spectra in the visible range of 7,8-dihydroporphine (H 2 DHP) (chlorin) and chlorophyll a have the same shape as those of porphyrins [76,77].…”

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Nonlinear optical properties of tetrapyrrole compounds and prospects for their application (a review)

Kruk

2008

J Appl Spectrosc

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The phenomenological description of second-(χ (2) ) and third-order (χ (3) ) nonlinear optical phenomena and studies on nonlinear optical properties of tetrapyrrole molecules are reviewed. Issues of the formation of twophoton absorption spectra of tetrapyrrole compounds and ways to synthesize new molecular systems possessing high nonlinear optical parameters are presented and discussed in detail. The experience of use of the nonlinear optical properties of tetrapyrrole compounds in industry, medicine, and biology and future trends in this area are presented and analyzed.Introduction. The rapid development and broad introduction of materials with nonlinear optical properties during the last decade have made photonic technologies an indispensable part of our daily life. Nonlinear optical materials are key elements in modern photonic technologies. They are used to fabricate components of computer and telecommunication systems, new high-density information-storage devices, optoelectronic sensors, image processing systems, and optical switches and connectors [1]. Much effort is being expended to develop photonic devices based on organic compounds with nonlinear optical properties. Previous investigations have shown that organic compounds with significant second-and third-order optical nonlinearity are promising materials for a wide range of photonic devices. Nonlinear optical materials based on organic compounds are potentially highly useful in various photonic devices because of the variety of molecular structures (from single molecules to organic polymers) and the ability for directed chemical modification of their functional properties. Nonlinear optical components can be integrated with electric, magnetic, and other optical components. Various nonlinear optical effects can be used to fabricate devices for different applications.The nonlinear optical properties of organic compounds can also be applied to biological investigations and in medicine. Multi-photon laser scanning microscopy is a new dynamically developing scientific field for the investigation of the structure and functional properties of biological subjects [2,3]. Multi-photon (as a rule, two-or three-photon is used) excitation provides the capability to use new spectral ranges, to isolate a region of photoexcitation of the studied tissues in the focal plane, to form an image with spatial resolution (3D-resolution), and to decrease substantially the background luminescence. These advantages of multi-photon excitation can be used to expand the capabilities of photodynamic therapy. It is expected that the use of this method will enable the depth of the photodynamic effect in tissues of patients to be increased and its range to be localized in a volume <1 µm 3 .Tetrapyrrole compounds exhibit nonlinear optical properties that are due to second (χ (2) ) and third (χ (3) ) order nonlinear susceptibilities. The cubic nonlinearity is the lowest order nonlinearity for most of them owing to the molecular symmetry. The variety of possible molecular structures of ...

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Persistent spectral hole burning by simultaneous two-photon absorption

Cited by 31 publications

References 23 publications

Efficient singlet oxygen generation upon two-photon excitation of new porphyrin with enhanced nonlinear absorption

Efficient singlet oxygen generation upon two-photon excitation of new porphyrin with enhanced nonlinear absorption

Purely electronic zero-phonon line as the foundation stone for high-resolution matrix spectroscopy, single-impurity-molecule spectroscopy, and persistent spectral hole burning. Recent developments

Nonlinear optical properties of tetrapyrrole compounds and prospects for their application (a review)

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