Slow light for deep tissue imaging with ultrasound modulation

Zhang, Huiliang; Sabooni, Mahmood; Rippe, Lars; Kim, Chulhong; Kröll, Stefan; Wang, Lihong V.; Hemmer, Philip

doi:10.1063/1.3696307

Cited by 58 publications

(62 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As an example a T B ≈ 10 for Γ = 1 MHz, α ≈ 50 cm −1 , and l =12 mm is reported in Ref. [24]. Potential applications of controlled spectral engineering of slow light structures in cavities will now be discussed.…”

mentioning

confidence: 99%

Spectral Engineering of Slow Light, Cavity Line Narrowing, and Pulse Compression

Sabooni

Rippe

et al. 2013

Phys. Rev. Lett.

Self Cite

View full text Add to dashboard Cite

More than four orders of magnitude cavity-linewidth narrowing in a rare-earth-ion-doped crystal cavity, emanating from strong intra-cavity dispersion caused by off-resonant interaction with dopant ions is demonstrated. The dispersion profiles are engineered using optical pumping techniques creating significant semi-permanent but reprogrammable changes of the rare earth absorption profiles. Several cavity modes are shown within the spectral transmission window. Several possible applications of this phenomenon are discussed.PACS numbers: 42.50. Ct, 42.50.Pq, 42.79.Gn, 78.47.nd Cavity linewidth narrowing has been suggested to have great potential in many different areas such as laser stabilization [1, 2], high-resolution spectroscopy [2], enhanced light matter interaction and compressed optical energy [3]. We show more than four orders of magnitude cavity linewidth narrowing, which, to the best of our knowledge, is more than two orders of magnitude larger than demonstrated with other techniques. Previously 10 to 20 times linewidth narrowing has been shown using either EIT [4][5][6], and recently two orders of magnitude was shown using coherent population oscillation (CPO) in combination with a cavity dispersive effect [7]. We also demonstrate several cavity modes within the slow light transmission window, something which we are not aware of having been demonstrated using EIT or CPO. The present results are obtained using spectral hole-burning in rare-earth-ion doped crystals [8-10] and we discuss the properties and potential of slow light structures created with this method in these materials.In this paper, a cavity formed by depositing mirrors directly onto a praseodymium doped Y 2 SiO 5 crystal and (near) persistent spectral hole burning (PSHB) is employed to create a very strong dispersion. A sharp dispersion slope reduces the photon group velocity, and therefore increases the effective photon lifetime in the cavity compared to a non-dispersive cavity (some times referred to as cold cavity [11]).Generally the mode spacing in a Fabry-Pérot cavity, ∆ν, is given by [11] 2L (1) where c is the speed of light in vacuum, ν is the light frequency, n is the real part of the index of refraction (for the phase velocity), v g (ν) is the group velocity and n g (ν) is the index of refraction for the group velocity. For the present work it is useful to briefly analyse the mode spacing relation. The resonance condition for a Fabry-Pérot cavity of length L may be expressed as m(λ/2) = L, where m is an integer and the wavelength λ = c/(nν). ThusDifferentiating Eq. 2 givesDividing the left (right) hand side of Eq. 3 with the left (right) hand side of Eq. 2 yieldswhere n = n(ν) is a function of frequency. Normally when the frequency is changed δν/ν δn/n, but in the case of significant slow light effects n ν(dn/dν) and the second term on the right hand side in Eq. 4 is much larger than the first. Thus the cavity mode spacing is basically completely determined by the dispersion while the impact of the relative change in the freque...

show abstract

mentioning

confidence: 99%

Spectral Engineering of Slow Light, Cavity Line Narrowing, and Pulse Compression

Sabooni

Rippe

et al. 2013

Phys. Rev. Lett.

Self Cite

View full text Add to dashboard Cite

show abstract

“…This was verified by moving the laser away from the praseodymium absorption line. Previous studies 15 have been hampered by not achieving the same level of absorption for scattered light as for collimated light. We are hopeful that our technique will not suffer from this problem as light that does not interact with the active atoms for whatever reason, be it polarisation or scattered around the crystal, will appear in the carrier time window and not pollute the sideband time window.…”

mentioning

confidence: 99%

“…15 For biomedical imaging, it is problematic that 606 nm sits at the edge of the biological transparency window. A better option in this respect would be, for example, the 790 nm transition in Tm 3þ doped crystals.…”

mentioning

confidence: 99%

“…14 The suppression between input pulse and background noise has been further improved by Zhang et al through the use of slow light. 15 Here, we combine quantum memory techniques with the optical detection of ultrasound, achieving an extremely sensitive level of detection. An effective quantum memory must have both a high storage efficiency and a very low noise level.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Using quantum memory techniques for optical detection of ultrasound

McAuslan¹,

Taylor²,

Longdell³

2012

Appl. Phys. Lett.

View full text Add to dashboard Cite

“…The latter includes radio frequency signal analysis, 6,7 highly stable laser-locking, 8,9 and ultrasound optical tomography (UOT). 10,11 Recently, rare-earth doped transparent ceramics have been suggested as an alternative class of materials for these applications, 12 as for lasers 13 and scintillators. 14 Indeed, the ability of ceramics to be shaped into complex structures could be used to control the effects of perturbations on the optical transitions (e.g., frequency shifts) due to strain, vibrations, temperature, or pressure.…”

mentioning

confidence: 99%

Rare-earth doped transparent ceramics for spectral filtering and quantum information processing

et al. 2015

View full text Add to dashboard Cite

Homogeneous linewidths below 10 kHz are reported for the first time in high-quality Eu3+ doped Y 2O3 transparent ceramics. This result is obtained on the 7F0→5D0 transition in Eu3+ doped Y 2O3 ceramics and corresponds to an improvement of nearly one order of magnitude compared to previously reported values in transparent ceramics. Furthermore, we observed spectral hole lifetimes of ∼15 min that are long enough to enable efficient optical pumping of the nuclear hyperfine levels. Additionally, different Eu3+ concentrations (up to 1.0%) were studied, resulting in an increase of up to a factor of three in the peak absorption coefficient. These results suggest that transparent ceramics can be useful in applications where narrow and deep spectral holes can be burned into highly absorbing lines, such as quantum information processing and spectral filteringThis work was supported by the ANR projects RAMACO (No. 12-BS08-0015-01) and DISCRYS (No. 14-CE26-0037-01), Idex No. ANR-10-IDEX-0001-02 PSL⋆, and Nano’K project RECTUS. C.W.T. and R.L.C. acknowledge support from National Science Foundation (NSF) Award Nos. CHE-1416454 and PHY-1415628 and M.O.R. and L.E.B. from Project No. MAT2013- 43301-R of the Spanish Ministry of Economy and Competitiveness (MINECO) and Comunidad Autónoma de Madrid under Grant No. S2013/MIT-274

show abstract

Slow light for deep tissue imaging with ultrasound modulation

Cited by 58 publications

References 27 publications

Spectral Engineering of Slow Light, Cavity Line Narrowing, and Pulse Compression

Spectral Engineering of Slow Light, Cavity Line Narrowing, and Pulse Compression

Using quantum memory techniques for optical detection of ultrasound

Rare-earth doped transparent ceramics for spectral filtering and quantum information processing

Contact Info

Product

Resources

About