Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Höpker, Jan"'
Autor:
Lange, Nina Amelie, Schapeler, Timon, Höpker, Jan Philipp, Protte, Maximilian, Bartley, Tim J.
We demonstrate the generation of degenerate photon pairs from spontaneous parametric down-conversion in titanium in-diffused waveguides in lithium niobate at cryogenic temperatures. Since the phase-matching cannot be temperature tuned inside a cryost
Externí odkaz:
http://arxiv.org/abs/2303.17428
Nanosecond gating of superconducting nanowire single-photon detectors using cryogenic bias circuitry
Autor:
Hummel, Thomas, Widhalm, Alex, HÖpker, Jan Philipp, JÖns, Klaus D., Chang, Jin, Fognini, Andreas, Steinhauer, Stephan, Zwiller, Val, Zrenner, Artur, Bartley, Tim J.
Superconducting nanowire single-photon detectors (SNSPDs) show near unity efficiency, low dark count rate, and short recovery time. Combining these characteristics with temporal control of SNSPDs broadens their applications as in active de-latching f
Externí odkaz:
http://arxiv.org/abs/2210.14841
Autor:
Protte, Maximilian, Verma, Varun B., Höpker, Jan Philipp, Mirin, Richard P., Nam, Sae Woo, Bartley, Tim J.
We demonstrate the fabrication of micron-wide tungsten silicide superconducting nanowire single-photon detectors on a silicon substrate using laser lithography. We show saturated internal detection efficiencies with wire widths from 0.59$\mu$m to 1.4
Externí odkaz:
http://arxiv.org/abs/2112.07976
Autor:
Lange, Nina Amelie, Höpker, Jan Philipp, Ricken, Raimund, Quiring, Viktor, Eigner, Christof, Silberhorn, Christine, Bartley, Tim J.
Scalable quantum photonics relies on interfacing many optical components under mutually compatible operating conditions. To that end, we demonstrate that spontaneous parametric down-conversion (SPDC) in nonlinear waveguides, a standard technology for
Externí odkaz:
http://arxiv.org/abs/2110.07425
Autor:
Höpker, Jan Philipp, Verma, Varun B., Protte, Maximilian, Ricken, Raimund, Quiring, Viktor, Eigner, Christof, Ebers, Lena, Hammer, Manfred, Foerstner, Jens, Silberhorn, Christine, Mirin, Richard P., Nam, Sae Woo, Bartley, Tim J.
Publikováno v:
J. Phys. Photonics 3 034022 (2021)
We demonstrate the integration of amorphous tungsten silicide superconducting nanowire single-photon detectors on titanium in-diffused lithium niobate waveguides. We show proof-of-principle detection of evanescently-coupled photons of 1550nm waveleng
Externí odkaz:
http://arxiv.org/abs/2104.12500
We demonstrate and verify quantum detector tomography of a superconducting nanowire single-photon detector (SNSPD) in a multiplexing scheme which permits measurement of up to 71000 photons per input pulse. We reconstruct the positive operator valued
Externí odkaz:
http://arxiv.org/abs/2102.11596
We demonstrate quantum detector tomography of a commercial 2x2 array of superconducting nanowire single photon detectors. We show that detector-specific figures of merit including efficiency, dark-count and cross-talk probabilities can be directly ex
Externí odkaz:
http://arxiv.org/abs/2007.16048
Autor:
Bartnick, Moritz, Santandrea, Matteo, Hoepker, Jan Philipp, Thiele, Frederik, Ricken, Raimund, Quiring, Viktor, Eigner, Christof, Herrmann, Harald, Silberhorn, Christine, Bartley, Tim J.
Publikováno v:
Phys. Rev. Applied 15, 024028 (2021)
Prospective integrated quantum optical technologies will combine nonlinear optics and components requiring cryogenic operating temperatures. Despite the prevalence of integrated platforms exploiting $\chi^{(2)}$-nonlinearities for quantum optics, for
Externí odkaz:
http://arxiv.org/abs/2005.07500
Autor:
Höpker, Jan Philipp, Gerrits, Thomas, Lita, Adriana, Krapick, Stephan, Herrmann, Harald, Ricken, Raimund, Quiring, Viktor, Mirin, Richard, Nam, Sae Woo, Silberhorn, Christine, Bartley, Tim J.
Publikováno v:
APL Photonics 4, 056103 (2019)
We show the proof-of-principle detection of light at 1550 nm coupled evanescently from a titanium in-diffused lithium niobate waveguide to a superconducting transition edge sensor. The coupling efficiency strongly depends on the polarization, the ove
Externí odkaz:
http://arxiv.org/abs/1812.08483