[1] P. Roingeard, Viral detection by electron microscopy: past, present and future, Biol. Cell 100, 491 (2008).
[2] S. Iijima, Helical microtubules of graphitic carbon, Nature (London) 354, 56 (1991).
[3] N. Shibata, T. Seki, G. Sánchez-Santolino, S. D. Findlay, Y. Kohno, T. Matsumoto, R. Ishikawa, and Y. Ikuhara, Electric field imaging of single atoms, Nat. Commun. 8, 15631 (2017).
[4] T. Tanigaki, T. Akashi, A. Sugawara, K. Miura, J. Hayakawa, K. Niitsu, T. Sato, X. Yu, Y. Tomioka, K. Harada, D. Shindo, Y. Tokura, and H. Shinada, Magnetic field obser vations in CoFeB/Ta layers with 0.67-nm resolution by electron holography, Sci. Rep. 7, 16598 (2017).
[5] D. Cooper, N. Bernier, and J. Rouvi`ere, Combining 2 nm Spatial Resolution and 0.02% Precision for Deformation Mapping of Semiconductor Specimens in a Transmission Electron Microscope by Precession Electron Diffraction, Nano Lett. 15, 5289 (2015).
[6] P. A. Midgley and R. E. Dunin-Borkowski, Electron tomography and holography in materials science, Nat. Mater. 8, 271 (2009).
[7] J. Yamasaki, S. Morishita, Y. Shimaoka, K. Ohta, and H. Sasaki, Phase imaging and atomic-resolution imaging by electron diffractive imaging, Jpn. J. Appl. Phys. 58, 120502 (2019).
[8] A. Tonomura, N. Osakabe, T. Matsuda, T. Kawasaki, J. Endo, S. Yano, and H. Yamada, Evidence for AharonovBohm Effect with Magnetic Field Completely Shielded from Electron Wave, Phys. Rev. Lett. 56, 792 (1986).
[9] M. Uchida and A. Tonomura, Generation of electron beams carrying orbital angular momentum, Nature (London) 464, 737 (2010).
[10] K. Y. Bliokh, M. R. Dennis, and F. Nori, Relativistic Electron Vortex Beams: Angular Momentum and SpinOrbit Interaction, Phys. Rev. Lett. 107, 174802 (2011).
[11] R. Hanbury Brown and R. Q. Twiss, Correlation between photons in two coherent beams of light, Nature (London) 177, 27 (1956).
[12] H. Kiesel, A Renz, and F. Hasselbach, Observation of Hanbury Brown–Twiss anticorrelations for free electrons, Nature (London) 418, 392 (2002).
[13] M. P. Silverman, On the feasibility of observing electron antibunching in a field-emission beam, Phys. Lett. A 120, 442 (1987).
[14] T. Kodama, N. Osakabe, J. Endo, A. Tonomura, K. Ohbayashi, T. Urakami, S. Ohsuka, H. Tsuchiya, Y. Tsuchiya, and Y. Uchikawa, Feasibility of observing twoelectron interference, Phys. Rev. A 57, 2781 (1998).
[15] T. Kodama and N. Osakabe, Mechanism for correlation in a coherent electron beam, Microscopy 68, 133 (2019).
[16] J. Kessler, Polarized Electrons, 2nd ed. (Springer-Verlag, Berlin, Heisenberg, 1985), p. 91–96.
[17] M. Kuwahara, S. Kusunoki, Y. Nambo, K. Saitoh, X. G. Jin, T. Ujihara, H. Asano, Y. Takeda, and N. Tanaka, Coherence of a spin-polarized electron beam emitted from a semiconductor photocathode in a transmission electron microscope, Appl. Phys. Lett. 105, 193101 (2014).
[18] X. G. Jin, N. Yamamoto, Y. Nakagawa, A. Mano, T. Kato, M. Tanioku, T. Ujihara, Y. Takeda, S. Okumi, M. Yamamoto, T. Nakanishi, T. Saka, H. Horinaka, T. Kato, T. Yasue, and T. Koshikawa, Super-high brightness and high-spin-polarization photocathode, Appl. Phys. Express 1, 045002 (2008).
[19] M. Kuwahara, Y. Nambo, K. Aoki, K. Sameshima, X. G. Jin, T. Ujihara, H. Asano, K. Saitoh, Y. Takeda, and N. Tanaka, The Boersch effect in a picosecond pulsed electron beam emitted from a semiconductor photocathode, Appl. Phys. Lett. 109, 013108 (2016).
[20] Y. Nambo, M. Kuwahara, S. Kusunoki, K. Sameshima, K. Saitoh, T. Ujihara, H. Asano, Y. Takeda, and N. Tanaka, Nano-second time-resolved measurement in spin-polarized pulse TEM, AMTC Lett. 4, 256 (2014).
[21] Y. Honda, S. Matsuba, X. G. Jin, T. Miyajima, M. Yamamoto, T. Uchiyama, M. Kuwahara, and Y. Takeda, Temporal response measurements of GaAs-based photocathodes, Jpn. J. Appl. Phys. 52, 086401 (2013).
[22] M. Born and E. Wolf, Principles of Optics, 7th (expanded) ed. (Cambridge University Press, Cambridge, England, 1999), p. 572.
[23] P. W. Hawkes and H. Kasper, Principles of Electron Optics (Academic Press, London, 1989), Vol. 2, Chap. 48.
[24] G. F. Knoll, Radiation Detection and Measurement, 4th ed. (Wiley, New York, 2010), Chap. 4.
[25] M. Galanti, R. Gott, and J. F. Renaud, A high resolution, high sensitivity channel plate image intensifier for use in particle spectrographs, Rev. Sci. Instrum. 42, 1818 (1971).
[26] M. P. Silverman, Second-order temporal and spatial coherence of thermal electrons, Il Nuovo Cimento 99, 227 (1987).
[27] P. Kwiat, H. Weinfurter, T. Herzog, A. Zeilinger, and M. A. Kasevich, Interaction-Free Measurement, Phys. Rev. Lett. 74, 4763 (1995).
[28] H. Morishita, T. Ohshima, M. Kuwahara, Y. Ose, and T. Agemura, Resolution improvement of low-voltage scanning electron microscope by bright and monochromatic electron gun using negative electron affinity photocathode, J. Appl. Phys. 127, 164902 (2020).
[29] P. Kruit, R. G. Hobbs, C. S. Kim, Y. Yang, V. R. Manfrinato, J. Hammer, S. Thomas, P. Weber, B. Klopfer, C. Kohstall, T. Juffmann, M. A. Kasevich, P. Hommelhoff, and K. K. Berggren, Designs for a quantum electron microscope, Ultramicroscopy 164, 31 (2016).