Abstract

A high-resolution ultraviolet (UV)-to-visible image conversion microscope using photoluminescence emitted from self-assembled CdSe/ZnCdMgSe quantum dots (QDs) and quantum wells has been developed. This novel microscope exhibits a 1μm lateral resolution with possible estimated lateral resolution of 200nm using defect-free QD samples and UV micro-objective with higher numerical aperture and field of view.

© 2009 Optical Society of America

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References

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    [CrossRef] [PubMed]
  2. I. Zeylikovich, M. C. Tamargo, and R. R. Alfano, J. Phys. B 40, S373-S378 (2007).
    [CrossRef]
  3. W. A. R. Franks, M. J. Kiik, and A. Nathan, IEEE Trans. Electron. Devices 50, 352-358 (2003).
    [CrossRef]
  4. C. Wang, P. Shumyatsky, F. Zeng, M. Zevallos, and R. R. Alfano, Appl. Opt. 45, 1148-1152 (2006).
    [CrossRef] [PubMed]
  5. M. N. Perez-Paz, X. Zhou, M. Muñoz, H. Lu, M. Sohel, and M. C. Tamargo, Appl. Phys. Lett. 85, 6395-6397 (2004).
    [CrossRef]

2007 (1)

I. Zeylikovich, M. C. Tamargo, and R. R. Alfano, J. Phys. B 40, S373-S378 (2007).
[CrossRef]

2006 (1)

2004 (1)

M. N. Perez-Paz, X. Zhou, M. Muñoz, H. Lu, M. Sohel, and M. C. Tamargo, Appl. Phys. Lett. 85, 6395-6397 (2004).
[CrossRef]

2003 (1)

W. A. R. Franks, M. J. Kiik, and A. Nathan, IEEE Trans. Electron. Devices 50, 352-358 (2003).
[CrossRef]

1973 (1)

Alfano, R. R.

Fiebelman, W. A.

Franks, W A. R.

W. A. R. Franks, M. J. Kiik, and A. Nathan, IEEE Trans. Electron. Devices 50, 352-358 (2003).
[CrossRef]

Kiik, M. J.

W. A. R. Franks, M. J. Kiik, and A. Nathan, IEEE Trans. Electron. Devices 50, 352-358 (2003).
[CrossRef]

Lu, H.

M. N. Perez-Paz, X. Zhou, M. Muñoz, H. Lu, M. Sohel, and M. C. Tamargo, Appl. Phys. Lett. 85, 6395-6397 (2004).
[CrossRef]

Muñoz, M.

M. N. Perez-Paz, X. Zhou, M. Muñoz, H. Lu, M. Sohel, and M. C. Tamargo, Appl. Phys. Lett. 85, 6395-6397 (2004).
[CrossRef]

Nathan, A.

W. A. R. Franks, M. J. Kiik, and A. Nathan, IEEE Trans. Electron. Devices 50, 352-358 (2003).
[CrossRef]

Perez-Paz, M. N.

M. N. Perez-Paz, X. Zhou, M. Muñoz, H. Lu, M. Sohel, and M. C. Tamargo, Appl. Phys. Lett. 85, 6395-6397 (2004).
[CrossRef]

Shumyatsky, P.

Sohel, M.

M. N. Perez-Paz, X. Zhou, M. Muñoz, H. Lu, M. Sohel, and M. C. Tamargo, Appl. Phys. Lett. 85, 6395-6397 (2004).
[CrossRef]

Tamargo, M. C.

I. Zeylikovich, M. C. Tamargo, and R. R. Alfano, J. Phys. B 40, S373-S378 (2007).
[CrossRef]

M. N. Perez-Paz, X. Zhou, M. Muñoz, H. Lu, M. Sohel, and M. C. Tamargo, Appl. Phys. Lett. 85, 6395-6397 (2004).
[CrossRef]

Wang, C.

Williams, J. T.

Zeng, F.

Zevallos, M.

Zeylikovich, I.

I. Zeylikovich, M. C. Tamargo, and R. R. Alfano, J. Phys. B 40, S373-S378 (2007).
[CrossRef]

Zhou, X.

M. N. Perez-Paz, X. Zhou, M. Muñoz, H. Lu, M. Sohel, and M. C. Tamargo, Appl. Phys. Lett. 85, 6395-6397 (2004).
[CrossRef]

Appl. Opt. (2)

Appl. Phys. Lett. (1)

M. N. Perez-Paz, X. Zhou, M. Muñoz, H. Lu, M. Sohel, and M. C. Tamargo, Appl. Phys. Lett. 85, 6395-6397 (2004).
[CrossRef]

IEEE Trans. Electron. Devices (1)

W. A. R. Franks, M. J. Kiik, and A. Nathan, IEEE Trans. Electron. Devices 50, 352-358 (2003).
[CrossRef]

J. Phys. B (1)

I. Zeylikovich, M. C. Tamargo, and R. R. Alfano, J. Phys. B 40, S373-S378 (2007).
[CrossRef]

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Figures (5)

Fig. 1
Fig. 1

Setup of backscattering microscope with illumination of a target by the UV laser ( 325 nm ) and with imaging by using the QD- or QW-based image converter.

Fig. 2
Fig. 2

Images of the elements of group seven for the U.S. Air Force 1951 silica testing target using light sources with different wavelengths for illumination of the target. The dashed line shows the place where the cross sections of Fig. 3 were taken. (a) Image produced by 585 nm LED light transmitted through the target, and the VIS image is reflected by the QD and/or QW as a mirror. (b) UV-to-VIS image produced by the QD- or QW-based converter (325 to 585 nm ).

Fig. 3
Fig. 3

Cross-sectional line scans of the images by (a)  565 nm LED light. (b) PL emitted by QDs.

Fig. 4
Fig. 4

Microscope images of an electronic circuit (target). (a) Direct image using 400 nm LED. (b) UV-to-VIS converted image ( 585 nm QD emission wavelength).

Fig. 5
Fig. 5

(a) In vivo image of human cells. (b) Image of 1.0 μm polystyrene balls.

Equations (2)

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Z = ( 0.61 λ UV ) / NA 1 .
M = f 2 / f 1 = λ PL / λ UV .

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