New laser hits mark on cancer imaging to airport security

Harvard researchers have developed a totally new type of laser that can reach terahertz frequencies offering short-range, high-bandwidth wireless communications, very-high-resolution radar, and spectroscopy.

Leah Burrows | Nov. 15, 2019 | harvard
~7 mins   

Tags: science-technology electromagnetic-spectrum engineering federico-capasso laser physics terahertz-frequencies tunable-terahertz-laser

Harvard scientists use optical tweezers to capture ultracold molecules

Using precisely focused lasers that act as “optical tweezers,” Harvard scientists have been able to capture and control individual ultracold molecules – the eventual building-blocks of a quantum computer – and study the collisions between them in more detail than ever before.

Peter Reuell | Oct. 2, 2019 | harvard
~6 mins   

Tags: science-technology center-for-ultracold-atoms doyle faculty-of-arts-and-sciences fas harvard john-doyle kang-kuen-ni lasers molecular-tweezers molecules ni optical-tweezers peter-reuell quantum quantum-computer quantum-science-and-engineering-initiative reuell science tweezers ultracold-atoms ultracold-molecules

Harvard: Sound transmitted by laser is ultra-high-speed Wi-Fi breakthrough

In a breakthrough on the road toward ultra-high-speed Wi-Fi, Harvard researchers have demonstrated for the first time a laser that can emit microwaves wirelessly, modulate them, and receive external radio frequency signals.

Leah Burrows | April 25, 2019 | harvard
~5 mins   

Tags: science-technology alexey-belyanin benedikt-schwarz christine-a-wang daniel-mcnulty federico-capasso harvard-office-of-technology-development john-a-paulson-school-of-engineering-and-applied-sciences laser-frequency-combs marco-piccardo michael-k-connors michele-tamagnone noah-a-rubin paul-chevalier quantum-cascade-laser-frequency seas wi-fi yongrui-wang

Harvard researchers convert photons; could be used to fight cancer

Harvard researchers are using a chemical process known as triplet fusion upconversion to transform near-infrared photons into high-energy photons. The high-energy photons could be used in a huge range of applications, including a new type of precisely targeted chemotherapy, in which low-energy infrared lasers that penetrate deep into the body could be used to transform innocuous compounds into cancer-fighting drugs.

Peter Reuell | Feb. 27, 2019 | harvard
~6 mins   

Tags: science-technology basic-research dan-congreve faculty-of-arts-and-sciences fas harvard high-energy-light lasers light low-energy-light near-infrared peter-reuell photon photonic-upconversion photons reuell rowland-institute-at-harvard triple-fusion-upconversion

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